- published: 03 Sep 2014
- views: 3707189
Create your page here
-
remove the playlistGalactic Cluster
- remove the playlistGalactic Cluster
back to playlist
Superclusters – regions of space that are densely packed with galaxies – are the biggest structures in the Universe. But scientists have struggled to define exactly where one supercluster ends and another begins. Now, a team based in Hawaii has come up with a new technique that maps the Universe according to the flow of galaxies across space. Redrawing the boundaries of the cosmic map, they redefine our home supercluster and name it Laniakea, which means ‘immeasurable heaven’ in Hawaiian.
Read the research paper: http://dx.doi.org/10.1038/nature13674
Read Nature's news story: http://www.nature.com/news/earth-s-new-address-solar-system-milky-way-laniakea-1.15819
A group of U.S. astronomers, including those from the University of Missouri and MIT, used data from three of NASA's Great Observatories to study the most massive cluster ever found in the early universe. WSJ's Monika Auger reports. Photo: NASA/CXC/Univ of Missouri/M.Brodwin
Subscribe to the WSJ channel here:
http://bit.ly/14Q81Xy
More from the Wall Street Journal:
Visit WSJ.com: http://www.wsj.com
Follow WSJ on Facebook: http://www.facebook.com/wsjvideo
Follow WSJ on Google+: https://plus.google.com/+wsj/posts
Follow WSJ on Twitter: https://twitter.com/WSJvideo
Follow WSJ on Instagram: http://instagram.com/wsj
Follow WSJ on Pinterest: http://www.pinterest.com/wsj/
- published: 11 Jan 2016
- views: 2133
Cameron Gibelyou of the University of Michigan Physics Department explains the astronomical structures that exist at different scales in our unimaginably vast universe.
For more information about the Big History Project, see http://www.bighistoryproject.com/.
- published: 12 Aug 2011
- views: 7323
They are the one-stop-shopping places for learning all about the nature and variety of stars in the Universe. They're unique, because in clusters, all the stars were born at about the same time, from the same material and all are at the same approximate distance from Earth. This means we can be sure that any differences among them are due to their true natures and not distorted by different distances from Earth and other factors. In this documentary, two kinds of star clusters in the galaxy are explored. "Open Clusters" are young, live in the spiral arms of the galaxy and give us insight into the birth and formation of stars. "Globular Clusters" are old, live in the outskirts of the galaxy and could be nearly as old as the Universe itself. In addition, explore Galaxy clusters to reveal the large-scale structure of the Universe, which is expanding so fast that eventually all other galaxies, except for our own, will literally disappear from our sight.
- published: 02 Jan 2016
- views: 807
Text at http://howfarawayisit.com/documents/
In this segment of our "How far away is it" video book, we cover the superclusters closest to our supercluster, Virgo.
First we discuss the overall structure of the nearest 20 superclusters and illustrate the galactic structures of galaxy filaments, walls and voids including: the Sculuptor void; the Perseus-Pegasus filament; the Fornax, Centaurus, and Sculptor walls as well as the Great Wall or Coma wall. Then we take a look at several of these superclusters and some of the galaxies in each one we examine.
We start with the Hydra Supercluster with the Hydra Galaxy Cluster at its center. We examine NGC 2314, a rare double aligned pair of galaxies. We then move to the Centaurus Supercluster with the Centaurus Galaxy Cluster at its center. We then take a look at some of the galaxies in this supercluster including NGC 4603, NGC 4622, the unusual NGC 4650A, and NGC 4696. We then move on to the Perseus-Pisces Supercluster and the Perseus galaxy cluster within it and the remarkable galaxy NGC 1275 within it. Then we cover the Coma Supercluster with the Coma galaxy cluster at its center. We then take a look at the beautiful and wispy galaxy NGC 4921 along with NGC 4911.
Next we review the distances to some of the other local superclusters including Hercules, Leo, Shapely, Horologium, and the 1 billion light years distant Corona-Borealis Supercluster. We also cover the unusual peculiar motion superimposed on the normal Hubble flow that all the galaxies within a billion light years have. It appears that they are all moving towards a Great Attractor in the Norma or Shapley Supercluster.
Next we take a look at additional galaxies within a billion light years of us including: ESO 510 -- G13; NGC 6782; ESO 243-49 HLX-1 with a supermassive back hole in its disk; Stephan's Quintet; interacting galaxies NGC 1409 and NGC 1410; interacting galaxies ARP 127 and NGC 5679; galaxy cluster Abell S0740; ESO 325-G004 with its unique gravitational lens arcs called Einstein's rings; and finish with the very interesting Hoag's Object.
We end with a map of all the superclusters where we highlight the ones we've seen and show the dot that represents our local volume.
STEM
- published: 19 Aug 2013
- views: 49730
Measurements of unprecedented detail returned by Japan's Hitomi satellite have allowed scientists to track the motion of X-ray-emitting gas at the heart of the Perseus cluster of galaxies for the first time. The results showcase the long-awaited premiere of a next-generation X-ray instrument whose key components were developed at NASA's Goddard Space Flight Center in Greenbelt, Maryland.
Led by the Japan Aerospace Exploration Agency (JAXA), Hitomi was launched on Feb. 17. Following the successful activation of the observatory and instruments, Hitomi suffered a mission-ending spacecraft anomaly on March 26.
Before its demise, though, Hitomi was able to peer into the Perseus cluster of galaxies, an assemblage of thousands of galaxies bound together by gravity. Located about 240 million light-years away and named for its host constellation, the Perseus galaxy cluster contains a vast amount of extremely hot gas. At temperatures averaging 90 million degrees Fahrenheit (50 million degrees Celsius), the gas glows brightly in X-rays. Prior to Hitomi's launch, astronomers lacked the capability to measure the detailed dynamics of this gas, particularly its relationship to bubbles of gas expelled by an active supermassive black hole in the cluster's core galaxy, NGC 1275.
For the first time, thanks to Hitomi's revolutionary Soft X-ray Spectrometer (SXS), an instrument developed and built by Goddard scientists working closely with colleagues from several institutions in the United States, Japan, and the Netherlands, astronomers have mapped the motion of X-ray-emitting gas in a cluster of galaxies and shown it moves at cosmically modest speeds.
The total range of gas velocities directed toward or away from Earth within the area observed by Hitomi was found to be about 365,000 miles an hour (590,000 kilometers per hour) -- enormous by human standards but surprisingly modest on cosmic scales. The observed velocity range indicates that turbulence is responsible for only about 4 percent of the total gas pressure. This result is of particular interest to astrophysicists. Turbulent pressure was a previously unmeasured quantity that could significantly impact estimates of the cluster's mass. The SXS measurements show that only minor corrections are needed.
The Perseus observation provides a tantalizing glimpse of the tremendous advance that X-ray microcalorimetry will bring to astrophysics. U.S. researchers pioneered development of the technology in the 1980s, but Hitomi's all-too-brief run represents its most successful space application to date.
Credit: NASA's Goddard Space Flight Center
Music: "Natural Awe" and "To the Tower" from Killer Tracks
Read more: http://www.nasa.gov/feature/goddard/2016/hitomi-mission-charts-hot-winds-of-a-galaxy-cluster-for-the-first-time
This video is public domain and along with other supporting visualizations can be downloaded from the Scientific Visualization Studio at http://svs.gsfc.nasa.gov/12297
If you liked this video, subscribe to the NASA Goddard YouTube channel: http://www.youtube.com/NASAExplorer
Or subscribe to NASA’s Goddard Shorts HD Podcast: http://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html
Follow NASA’s Goddard Space Flight Center
· Facebook: http://www.facebook.com/NASA.GSFC
· Twitter http://twitter.com/NASAGoddard
· Flickr http://www.flickr.com/photos/gsfc/
· Instagram http://www.instagram.com/nasagoddard/
· Google+ http://plus.google.com/+NASAGoddard/posts
- published: 06 Jul 2016
- views: 19406
This movie is a 160 thousand particle simulation of two galaxy clusters, each with fifty galaxies, on a collision course. This simulation was presented in the paper Berrington & Dermer ApJ, 2003, 594, 709. The galaxy particles (both luminous and dark matter particles) are shown in white. The cluster wide dark matter is shown by the transparent orange particles.
A higher resolution version of this movie can be found at http://rberring.iweb.bsu.edu/animations.html
- published: 25 Feb 2008
- views: 4227
Comparison of the entire universe. From the smallest dwarf planets, to planets, to stars, to nebulas, to galaxies and to the universe.
Songs, in order, are: "Generations", "Age of Discovery" and "Serenata Immortale".
All are made by Immediate Music.
Notes:
Some of the images on the internet was really bad so I had to make some stars and such for myself so don't complain that you can't find some images (or if you don't like them cause trust me, the alternative was much worse).
If you have a question send me a message.
Strongly recommend to watch in higher quality.
All measurements are in diameter.
Sizes aren´t completely right and they may vary in the future.
Scales in the video might not be exact but a very good estimate.
- published: 25 Jan 2011
- views: 578078
Since structure in the universe forms in a bottom-up fashion, with smaller structures merging to form larger ones, modeling the merging process in detail is crucial to our understanding of cosmology. At the current epoch, we observe clusters of galaxies undergoing mergers. It is seen that the two major components of galaxy clusters, the hot intracluster gas and the dark matter, behave very differently during the course of a merger. Using the N-body and hydrodynamics capabilities in the FLASH code, we have simulated a suite of representative galaxy cluster mergers, including the dynamics of both the dark matter, which is collisionless, and the gas, which has the properties of a fluid. 3-D visualizations such as these demonstrate clearly the different behavior of these two components over time.
Credits:
Science: John Zuhone (Harvard-Smithsonian Center for Astrophysics
Visualization: Jonathan Gallagher (Flash Center, University of Chicago)
This research used resources of the Argonne Leadership Computing Facility at Argonne National Laboratory, which is supported by the Office of Science of the U.S. Dept. of Energy (DOE) under contract DE-AC02-06CH11357. This research was supported by the National Nuclear Security Administration's (NNSA) Advanced Simulation and Computing (ASC) Academic Strategic Alliance Program (ASAP).
- published: 09 Aug 2010
- views: 33095
Open cluster
An open cluster, also known as galactic cluster, is a group of up to a few thousand stars that were formed from the same giant molecular cloud and have roughly the same age. More than 1,100 open clusters have been discovered within the Milky Way Galaxy, and many more are thought to exist. They are loosely bound by mutual gravitational attraction and become disrupted by close encounters with other clusters and clouds of gas as they orbit the galactic center, resulting in a migration to the main body of the galaxy as well as a loss of cluster members through internal close encounters. Open clusters generally survive for a few hundred million years, with the most massive ones surviving for a few billion years. In contrast, the more massive globular clusters of stars exert a stronger gravitational attraction on their members, and can survive for longer. Open clusters have been found only in spiral and irregular galaxies, in which active star formation is occurring.
Young open clusters may still be contained within the molecular cloud from which they formed, illuminating it to create an H II region. Over time, radiation pressure from the cluster will disperse the molecular cloud. Typically, about 10% of the mass of a gas cloud will coalesce into stars before radiation pressure drives the rest of the gas away.
This page contains text from Wikipedia, the Free Encyclopedia -
http://wn.com/Open_cluster
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
- Loading...
-
4:11Laniakea: Our home supercluster
Laniakea: Our home superclusterLaniakea: Our home supercluster
Superclusters – regions of space that are densely packed with galaxies – are the biggest structures in the Universe. But scientists have struggled to define exactly where one supercluster ends and another begins. Now, a team based in Hawaii has come up with a new technique that maps the Universe according to the flow of galaxies across space. Redrawing the boundaries of the cosmic map, they redefine our home supercluster and name it Laniakea, which means ‘immeasurable heaven’ in Hawaiian. Read the research paper: http://dx.doi.org/10.1038/nature13674 Read Nature's news story: http://www.nature.com/news/earth-s-new-address-solar-system-milky-way-laniakea-1.15819 -
2:29Biggest Galaxy Cluster in Early Universe Found
Biggest Galaxy Cluster in Early Universe FoundBiggest Galaxy Cluster in Early Universe Found
A group of U.S. astronomers, including those from the University of Missouri and MIT, used data from three of NASA's Great Observatories to study the most massive cluster ever found in the early universe. WSJ's Monika Auger reports. Photo: NASA/CXC/Univ of Missouri/M.Brodwin Subscribe to the WSJ channel here: http://bit.ly/14Q81Xy More from the Wall Street Journal: Visit WSJ.com: http://www.wsj.com Follow WSJ on Facebook: http://www.facebook.com/wsjvideo Follow WSJ on Google+: https://plus.google.com/+wsj/posts Follow WSJ on Twitter: https://twitter.com/WSJvideo Follow WSJ on Instagram: http://instagram.com/wsj Follow WSJ on Pinterest: http://www.pinterest.com/wsj/ -
9:10Stars, Galaxies, Galaxy Clusters, and Superclusters
Stars, Galaxies, Galaxy Clusters, and SuperclustersStars, Galaxies, Galaxy Clusters, and Superclusters
Cameron Gibelyou of the University of Michigan Physics Department explains the astronomical structures that exist at different scales in our unimaginably vast universe. For more information about the Big History Project, see http://www.bighistoryproject.com/. -
45:24The Search for Cosmic Clusters - Space Documentary
The Search for Cosmic Clusters - Space DocumentaryThe Search for Cosmic Clusters - Space Documentary
They are the one-stop-shopping places for learning all about the nature and variety of stars in the Universe. They're unique, because in clusters, all the stars were born at about the same time, from the same material and all are at the same approximate distance from Earth. This means we can be sure that any differences among them are due to their true natures and not distorted by different distances from Earth and other factors. In this documentary, two kinds of star clusters in the galaxy are explored. "Open Clusters" are young, live in the spiral arms of the galaxy and give us insight into the birth and formation of stars. "Globular Clusters" are old, live in the outskirts of the galaxy and could be nearly as old as the Universe itself. In addition, explore Galaxy clusters to reveal the large-scale structure of the Universe, which is expanding so fast that eventually all other galaxies, except for our own, will literally disappear from our sight. -
19:54How Far Away Is It - 14 - Local Superclusters (1080p)
How Far Away Is It - 14 - Local Superclusters (1080p)How Far Away Is It - 14 - Local Superclusters (1080p)
Text at http://howfarawayisit.com/documents/ In this segment of our "How far away is it" video book, we cover the superclusters closest to our supercluster, Virgo. First we discuss the overall structure of the nearest 20 superclusters and illustrate the galactic structures of galaxy filaments, walls and voids including: the Sculuptor void; the Perseus-Pegasus filament; the Fornax, Centaurus, and Sculptor walls as well as the Great Wall or Coma wall. Then we take a look at several of these superclusters and some of the galaxies in each one we examine. We start with the Hydra Supercluster with the Hydra Galaxy Cluster at its center. We examine NGC 2314, a rare double aligned pair of galaxies. We then move to the Centaurus Supercluster with the Centaurus Galaxy Cluster at its center. We then take a look at some of the galaxies in this supercluster including NGC 4603, NGC 4622, the unusual NGC 4650A, and NGC 4696. We then move on to the Perseus-Pisces Supercluster and the Perseus galaxy cluster within it and the remarkable galaxy NGC 1275 within it. Then we cover the Coma Supercluster with the Coma galaxy cluster at its center. We then take a look at the beautiful and wispy galaxy NGC 4921 along with NGC 4911. Next we review the distances to some of the other local superclusters including Hercules, Leo, Shapely, Horologium, and the 1 billion light years distant Corona-Borealis Supercluster. We also cover the unusual peculiar motion superimposed on the normal Hubble flow that all the galaxies within a billion light years have. It appears that they are all moving towards a Great Attractor in the Norma or Shapley Supercluster. Next we take a look at additional galaxies within a billion light years of us including: ESO 510 -- G13; NGC 6782; ESO 243-49 HLX-1 with a supermassive back hole in its disk; Stephan's Quintet; interacting galaxies NGC 1409 and NGC 1410; interacting galaxies ARP 127 and NGC 5679; galaxy cluster Abell S0740; ESO 325-G004 with its unique gravitational lens arcs called Einstein's rings; and finish with the very interesting Hoag's Object. We end with a map of all the superclusters where we highlight the ones we've seen and show the dot that represents our local volume. STEM -
3:27Hitomi Measures Perseus Galaxy Cluster's X-ray Winds
Hitomi Measures Perseus Galaxy Cluster's X-ray WindsHitomi Measures Perseus Galaxy Cluster's X-ray Winds
Measurements of unprecedented detail returned by Japan's Hitomi satellite have allowed scientists to track the motion of X-ray-emitting gas at the heart of the Perseus cluster of galaxies for the first time. The results showcase the long-awaited premiere of a next-generation X-ray instrument whose key components were developed at NASA's Goddard Space Flight Center in Greenbelt, Maryland. Led by the Japan Aerospace Exploration Agency (JAXA), Hitomi was launched on Feb. 17. Following the successful activation of the observatory and instruments, Hitomi suffered a mission-ending spacecraft anomaly on March 26. Before its demise, though, Hitomi was able to peer into the Perseus cluster of galaxies, an assemblage of thousands of galaxies bound together by gravity. Located about 240 million light-years away and named for its host constellation, the Perseus galaxy cluster contains a vast amount of extremely hot gas. At temperatures averaging 90 million degrees Fahrenheit (50 million degrees Celsius), the gas glows brightly in X-rays. Prior to Hitomi's launch, astronomers lacked the capability to measure the detailed dynamics of this gas, particularly its relationship to bubbles of gas expelled by an active supermassive black hole in the cluster's core galaxy, NGC 1275. For the first time, thanks to Hitomi's revolutionary Soft X-ray Spectrometer (SXS), an instrument developed and built by Goddard scientists working closely with colleagues from several institutions in the United States, Japan, and the Netherlands, astronomers have mapped the motion of X-ray-emitting gas in a cluster of galaxies and shown it moves at cosmically modest speeds. The total range of gas velocities directed toward or away from Earth within the area observed by Hitomi was found to be about 365,000 miles an hour (590,000 kilometers per hour) -- enormous by human standards but surprisingly modest on cosmic scales. The observed velocity range indicates that turbulence is responsible for only about 4 percent of the total gas pressure. This result is of particular interest to astrophysicists. Turbulent pressure was a previously unmeasured quantity that could significantly impact estimates of the cluster's mass. The SXS measurements show that only minor corrections are needed. The Perseus observation provides a tantalizing glimpse of the tremendous advance that X-ray microcalorimetry will bring to astrophysics. U.S. researchers pioneered development of the technology in the 1980s, but Hitomi's all-too-brief run represents its most successful space application to date. Credit: NASA's Goddard Space Flight Center Music: "Natural Awe" and "To the Tower" from Killer Tracks Read more: http://www.nasa.gov/feature/goddard/2016/hitomi-mission-charts-hot-winds-of-a-galaxy-cluster-for-the-first-time This video is public domain and along with other supporting visualizations can be downloaded from the Scientific Visualization Studio at http://svs.gsfc.nasa.gov/12297 If you liked this video, subscribe to the NASA Goddard YouTube channel: http://www.youtube.com/NASAExplorer Or subscribe to NASA’s Goddard Shorts HD Podcast: http://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html Follow NASA’s Goddard Space Flight Center · Facebook: http://www.facebook.com/NASA.GSFC · Twitter http://twitter.com/NASAGoddard · Flickr http://www.flickr.com/photos/gsfc/ · Instagram http://www.instagram.com/nasagoddard/ · Google+ http://plus.google.com/+NASAGoddard/posts -
5:01ARNOLD STEINER - GALACTIC CLUSTER
ARNOLD STEINER - GALACTIC CLUSTER -
1:28Two 50-galaxy Cluster Crash Simulation
Two 50-galaxy Cluster Crash SimulationTwo 50-galaxy Cluster Crash Simulation
This movie is a 160 thousand particle simulation of two galaxy clusters, each with fifty galaxies, on a collision course. This simulation was presented in the paper Berrington & Dermer ApJ, 2003, 594, 709. The galaxy particles (both luminous and dark matter particles) are shown in white. The cluster wide dark matter is shown by the transparent orange particles. A higher resolution version of this movie can be found at http://rberring.iweb.bsu.edu/animations.html -
10:01Comparison Of The Entire Universe (Updated 2011) Moons, Planets, Stars, Nebulas, Galaxies, Clusters
Comparison Of The Entire Universe (Updated 2011) Moons, Planets, Stars, Nebulas, Galaxies, ClustersComparison Of The Entire Universe (Updated 2011) Moons, Planets, Stars, Nebulas, Galaxies, Clusters
Comparison of the entire universe. From the smallest dwarf planets, to planets, to stars, to nebulas, to galaxies and to the universe. Songs, in order, are: "Generations", "Age of Discovery" and "Serenata Immortale". All are made by Immediate Music. Notes: Some of the images on the internet was really bad so I had to make some stars and such for myself so don't complain that you can't find some images (or if you don't like them cause trust me, the alternative was much worse). If you have a question send me a message. Strongly recommend to watch in higher quality. All measurements are in diameter. Sizes aren´t completely right and they may vary in the future. Scales in the video might not be exact but a very good estimate. -
3:17Flash Galaxy Cluster Merger, Simulated using the Flash Code, Mass Ratio 1:1
Flash Galaxy Cluster Merger, Simulated using the Flash Code, Mass Ratio 1:1Flash Galaxy Cluster Merger, Simulated using the Flash Code, Mass Ratio 1:1
Since structure in the universe forms in a bottom-up fashion, with smaller structures merging to form larger ones, modeling the merging process in detail is crucial to our understanding of cosmology. At the current epoch, we observe clusters of galaxies undergoing mergers. It is seen that the two major components of galaxy clusters, the hot intracluster gas and the dark matter, behave very differently during the course of a merger. Using the N-body and hydrodynamics capabilities in the FLASH code, we have simulated a suite of representative galaxy cluster mergers, including the dynamics of both the dark matter, which is collisionless, and the gas, which has the properties of a fluid. 3-D visualizations such as these demonstrate clearly the different behavior of these two components over time. Credits: Science: John Zuhone (Harvard-Smithsonian Center for Astrophysics Visualization: Jonathan Gallagher (Flash Center, University of Chicago) This research used resources of the Argonne Leadership Computing Facility at Argonne National Laboratory, which is supported by the Office of Science of the U.S. Dept. of Energy (DOE) under contract DE-AC02-06CH11357. This research was supported by the National Nuclear Security Administration's (NNSA) Advanced Simulation and Computing (ASC) Academic Strategic Alliance Program (ASAP).
-
Laniakea: Our home supercluster
Superclusters – regions of space that are densely packed with galaxies – are the biggest structures in the Universe. But scientists have struggled to define exactly where one supercluster ends and another begins. Now, a team based in Hawaii has come up with a new technique that maps the Universe according to the flow of galaxies across space. Redrawing the boundaries of the cosmic map, they redefine our home supercluster and name it Laniakea, which means ‘immeasurable heaven’ in Hawaiian. Read the research paper: http://dx.doi.org/10.1038/nature13674 Read Nature's news story: http://www.nature.com/news/earth-s-new-address-solar-system-milky-way-laniakea-1.15819 -
Biggest Galaxy Cluster in Early Universe Found
A group of U.S. astronomers, including those from the University of Missouri and MIT, used data from three of NASA's Great Observatories to study the most massive cluster ever found in the early universe. WSJ's Monika Auger reports. Photo: NASA/CXC/Univ of Missouri/M.Brodwin Subscribe to the WSJ channel here: http://bit.ly/14Q81Xy More from the Wall Street Journal: Visit WSJ.com: http://www.wsj.com Follow WSJ on Facebook: http://www.facebook.com/wsjvideo Follow WSJ on Google+: https://plus.google.com/+wsj/posts Follow WSJ on Twitter: https://twitter.com/WSJvideo Follow WSJ on Instagram: http://instagram.com/wsj Follow WSJ on Pinterest: http://www.pinterest.com/wsj/ -
Stars, Galaxies, Galaxy Clusters, and Superclusters
Cameron Gibelyou of the University of Michigan Physics Department explains the astronomical structures that exist at different scales in our unimaginably vast universe. For more information about the Big History Project, see http://www.bighistoryproject.com/. -
The Search for Cosmic Clusters - Space Documentary
They are the one-stop-shopping places for learning all about the nature and variety of stars in the Universe. They're unique, because in clusters, all the stars were born at about the same time, from the same material and all are at the same approximate distance from Earth. This means we can be sure that any differences among them are due to their true natures and not distorted by different distances from Earth and other factors. In this documentary, two kinds of star clusters in the galaxy are explored. "Open Clusters" are young, live in the spiral arms of the galaxy and give us insight into the birth and formation of stars. "Globular Clusters" are old, live in the outskirts of the galaxy and could be nearly as old as the Universe itself. In addition, explore Galaxy clusters to reveal the... -
How Far Away Is It - 14 - Local Superclusters (1080p)
Text at http://howfarawayisit.com/documents/ In this segment of our "How far away is it" video book, we cover the superclusters closest to our supercluster, Virgo. First we discuss the overall structure of the nearest 20 superclusters and illustrate the galactic structures of galaxy filaments, walls and voids including: the Sculuptor void; the Perseus-Pegasus filament; the Fornax, Centaurus, and Sculptor walls as well as the Great Wall or Coma wall. Then we take a look at several of these superclusters and some of the galaxies in each one we examine. We start with the Hydra Supercluster with the Hydra Galaxy Cluster at its center. We examine NGC 2314, a rare double aligned pair of galaxies. We then move to the Centaurus Supercluster with the Centaurus Galaxy Cluster at its center. We t... -
Hitomi Measures Perseus Galaxy Cluster's X-ray Winds
Measurements of unprecedented detail returned by Japan's Hitomi satellite have allowed scientists to track the motion of X-ray-emitting gas at the heart of the Perseus cluster of galaxies for the first time. The results showcase the long-awaited premiere of a next-generation X-ray instrument whose key components were developed at NASA's Goddard Space Flight Center in Greenbelt, Maryland. Led by the Japan Aerospace Exploration Agency (JAXA), Hitomi was launched on Feb. 17. Following the successful activation of the observatory and instruments, Hitomi suffered a mission-ending spacecraft anomaly on March 26. Before its demise, though, Hitomi was able to peer into the Perseus cluster of galaxies, an assemblage of thousands of galaxies bound together by gravity. Located about 240 million l... -
-
Two 50-galaxy Cluster Crash Simulation
This movie is a 160 thousand particle simulation of two galaxy clusters, each with fifty galaxies, on a collision course. This simulation was presented in the paper Berrington & Dermer ApJ, 2003, 594, 709. The galaxy particles (both luminous and dark matter particles) are shown in white. The cluster wide dark matter is shown by the transparent orange particles. A higher resolution version of this movie can be found at http://rberring.iweb.bsu.edu/animations.html -
Comparison Of The Entire Universe (Updated 2011) Moons, Planets, Stars, Nebulas, Galaxies, Clusters
Comparison of the entire universe. From the smallest dwarf planets, to planets, to stars, to nebulas, to galaxies and to the universe. Songs, in order, are: "Generations", "Age of Discovery" and "Serenata Immortale". All are made by Immediate Music. Notes: Some of the images on the internet was really bad so I had to make some stars and such for myself so don't complain that you can't find some images (or if you don't like them cause trust me, the alternative was much worse). If you have a question send me a message. Strongly recommend to watch in higher quality. All measurements are in diameter. Sizes aren´t completely right and they may vary in the future. Scales in the video might not be exact but a very good estimate. -
Flash Galaxy Cluster Merger, Simulated using the Flash Code, Mass Ratio 1:1
Since structure in the universe forms in a bottom-up fashion, with smaller structures merging to form larger ones, modeling the merging process in detail is crucial to our understanding of cosmology. At the current epoch, we observe clusters of galaxies undergoing mergers. It is seen that the two major components of galaxy clusters, the hot intracluster gas and the dark matter, behave very differently during the course of a merger. Using the N-body and hydrodynamics capabilities in the FLASH code, we have simulated a suite of representative galaxy cluster mergers, including the dynamics of both the dark matter, which is collisionless, and the gas, which has the properties of a fluid. 3-D visualizations such as these demonstrate clearly the different behavior of these two components over ti...
Laniakea: Our home supercluster
- Order: Reorder
- Duration: 4:11
- Updated: 03 Sep 2014
- views: 3707189
Superclusters – regions of space that are densely packed with galaxies – are the biggest structures in the Universe. But scientists have struggled to define exa...
Superclusters – regions of space that are densely packed with galaxies – are the biggest structures in the Universe. But scientists have struggled to define exactly where one supercluster ends and another begins. Now, a team based in Hawaii has come up with a new technique that maps the Universe according to the flow of galaxies across space. Redrawing the boundaries of the cosmic map, they redefine our home supercluster and name it Laniakea, which means ‘immeasurable heaven’ in Hawaiian.
Read the research paper: http://dx.doi.org/10.1038/nature13674
Read Nature's news story: http://www.nature.com/news/earth-s-new-address-solar-system-milky-way-laniakea-1.15819
wn.com/Laniakea Our Home Supercluster
Superclusters – regions of space that are densely packed with galaxies – are the biggest structures in the Universe. But scientists have struggled to define exactly where one supercluster ends and another begins. Now, a team based in Hawaii has come up with a new technique that maps the Universe according to the flow of galaxies across space. Redrawing the boundaries of the cosmic map, they redefine our home supercluster and name it Laniakea, which means ‘immeasurable heaven’ in Hawaiian.
Read the research paper: http://dx.doi.org/10.1038/nature13674
Read Nature's news story: http://www.nature.com/news/earth-s-new-address-solar-system-milky-way-laniakea-1.15819
- published: 03 Sep 2014
- views: 3707189
Biggest Galaxy Cluster in Early Universe Found
- Order: Reorder
- Duration: 2:29
- Updated: 11 Jan 2016
- views: 2133
A group of U.S. astronomers, including those from the University of Missouri and MIT, used data from three of NASA's Great Observatories to study the most massi...
A group of U.S. astronomers, including those from the University of Missouri and MIT, used data from three of NASA's Great Observatories to study the most massive cluster ever found in the early universe. WSJ's Monika Auger reports. Photo: NASA/CXC/Univ of Missouri/M.Brodwin
Subscribe to the WSJ channel here:
http://bit.ly/14Q81Xy
More from the Wall Street Journal:
Visit WSJ.com: http://www.wsj.com
Follow WSJ on Facebook: http://www.facebook.com/wsjvideo
Follow WSJ on Google+: https://plus.google.com/+wsj/posts
Follow WSJ on Twitter: https://twitter.com/WSJvideo
Follow WSJ on Instagram: http://instagram.com/wsj
Follow WSJ on Pinterest: http://www.pinterest.com/wsj/
wn.com/Biggest Galaxy Cluster In Early Universe Found
A group of U.S. astronomers, including those from the University of Missouri and MIT, used data from three of NASA's Great Observatories to study the most massive cluster ever found in the early universe. WSJ's Monika Auger reports. Photo: NASA/CXC/Univ of Missouri/M.Brodwin
Subscribe to the WSJ channel here:
http://bit.ly/14Q81Xy
More from the Wall Street Journal:
Visit WSJ.com: http://www.wsj.com
Follow WSJ on Facebook: http://www.facebook.com/wsjvideo
Follow WSJ on Google+: https://plus.google.com/+wsj/posts
Follow WSJ on Twitter: https://twitter.com/WSJvideo
Follow WSJ on Instagram: http://instagram.com/wsj
Follow WSJ on Pinterest: http://www.pinterest.com/wsj/
- published: 11 Jan 2016
- views: 2133
Stars, Galaxies, Galaxy Clusters, and Superclusters
- Order: Reorder
- Duration: 9:10
- Updated: 12 Aug 2011
- views: 7323
Cameron Gibelyou of the University of Michigan Physics Department explains the astronomical structures that exist at different scales in our unimaginably vast u...
Cameron Gibelyou of the University of Michigan Physics Department explains the astronomical structures that exist at different scales in our unimaginably vast universe.
For more information about the Big History Project, see http://www.bighistoryproject.com/.
wn.com/Stars, Galaxies, Galaxy Clusters, And Superclusters
Cameron Gibelyou of the University of Michigan Physics Department explains the astronomical structures that exist at different scales in our unimaginably vast universe.
For more information about the Big History Project, see http://www.bighistoryproject.com/.
- published: 12 Aug 2011
- views: 7323
The Search for Cosmic Clusters - Space Documentary
- Order: Reorder
- Duration: 45:24
- Updated: 02 Jan 2016
- views: 807
They are the one-stop-shopping places for learning all about the nature and variety of stars in the Universe. They're unique, because in clusters, all the stars...
They are the one-stop-shopping places for learning all about the nature and variety of stars in the Universe. They're unique, because in clusters, all the stars were born at about the same time, from the same material and all are at the same approximate distance from Earth. This means we can be sure that any differences among them are due to their true natures and not distorted by different distances from Earth and other factors. In this documentary, two kinds of star clusters in the galaxy are explored. "Open Clusters" are young, live in the spiral arms of the galaxy and give us insight into the birth and formation of stars. "Globular Clusters" are old, live in the outskirts of the galaxy and could be nearly as old as the Universe itself. In addition, explore Galaxy clusters to reveal the large-scale structure of the Universe, which is expanding so fast that eventually all other galaxies, except for our own, will literally disappear from our sight.
wn.com/The Search For Cosmic Clusters Space Documentary
They are the one-stop-shopping places for learning all about the nature and variety of stars in the Universe. They're unique, because in clusters, all the stars were born at about the same time, from the same material and all are at the same approximate distance from Earth. This means we can be sure that any differences among them are due to their true natures and not distorted by different distances from Earth and other factors. In this documentary, two kinds of star clusters in the galaxy are explored. "Open Clusters" are young, live in the spiral arms of the galaxy and give us insight into the birth and formation of stars. "Globular Clusters" are old, live in the outskirts of the galaxy and could be nearly as old as the Universe itself. In addition, explore Galaxy clusters to reveal the large-scale structure of the Universe, which is expanding so fast that eventually all other galaxies, except for our own, will literally disappear from our sight.
- published: 02 Jan 2016
- views: 807
How Far Away Is It - 14 - Local Superclusters (1080p)
- Order: Reorder
- Duration: 19:54
- Updated: 19 Aug 2013
- views: 49730
Text at http://howfarawayisit.com/documents/
In this segment of our "How far away is it" video book, we cover the superclusters closest to our supercluster, Vi...
Text at http://howfarawayisit.com/documents/
In this segment of our "How far away is it" video book, we cover the superclusters closest to our supercluster, Virgo.
First we discuss the overall structure of the nearest 20 superclusters and illustrate the galactic structures of galaxy filaments, walls and voids including: the Sculuptor void; the Perseus-Pegasus filament; the Fornax, Centaurus, and Sculptor walls as well as the Great Wall or Coma wall. Then we take a look at several of these superclusters and some of the galaxies in each one we examine.
We start with the Hydra Supercluster with the Hydra Galaxy Cluster at its center. We examine NGC 2314, a rare double aligned pair of galaxies. We then move to the Centaurus Supercluster with the Centaurus Galaxy Cluster at its center. We then take a look at some of the galaxies in this supercluster including NGC 4603, NGC 4622, the unusual NGC 4650A, and NGC 4696. We then move on to the Perseus-Pisces Supercluster and the Perseus galaxy cluster within it and the remarkable galaxy NGC 1275 within it. Then we cover the Coma Supercluster with the Coma galaxy cluster at its center. We then take a look at the beautiful and wispy galaxy NGC 4921 along with NGC 4911.
Next we review the distances to some of the other local superclusters including Hercules, Leo, Shapely, Horologium, and the 1 billion light years distant Corona-Borealis Supercluster. We also cover the unusual peculiar motion superimposed on the normal Hubble flow that all the galaxies within a billion light years have. It appears that they are all moving towards a Great Attractor in the Norma or Shapley Supercluster.
Next we take a look at additional galaxies within a billion light years of us including: ESO 510 -- G13; NGC 6782; ESO 243-49 HLX-1 with a supermassive back hole in its disk; Stephan's Quintet; interacting galaxies NGC 1409 and NGC 1410; interacting galaxies ARP 127 and NGC 5679; galaxy cluster Abell S0740; ESO 325-G004 with its unique gravitational lens arcs called Einstein's rings; and finish with the very interesting Hoag's Object.
We end with a map of all the superclusters where we highlight the ones we've seen and show the dot that represents our local volume.
STEM
wn.com/How Far Away Is It 14 Local Superclusters (1080P)
Text at http://howfarawayisit.com/documents/
In this segment of our "How far away is it" video book, we cover the superclusters closest to our supercluster, Virgo.
First we discuss the overall structure of the nearest 20 superclusters and illustrate the galactic structures of galaxy filaments, walls and voids including: the Sculuptor void; the Perseus-Pegasus filament; the Fornax, Centaurus, and Sculptor walls as well as the Great Wall or Coma wall. Then we take a look at several of these superclusters and some of the galaxies in each one we examine.
We start with the Hydra Supercluster with the Hydra Galaxy Cluster at its center. We examine NGC 2314, a rare double aligned pair of galaxies. We then move to the Centaurus Supercluster with the Centaurus Galaxy Cluster at its center. We then take a look at some of the galaxies in this supercluster including NGC 4603, NGC 4622, the unusual NGC 4650A, and NGC 4696. We then move on to the Perseus-Pisces Supercluster and the Perseus galaxy cluster within it and the remarkable galaxy NGC 1275 within it. Then we cover the Coma Supercluster with the Coma galaxy cluster at its center. We then take a look at the beautiful and wispy galaxy NGC 4921 along with NGC 4911.
Next we review the distances to some of the other local superclusters including Hercules, Leo, Shapely, Horologium, and the 1 billion light years distant Corona-Borealis Supercluster. We also cover the unusual peculiar motion superimposed on the normal Hubble flow that all the galaxies within a billion light years have. It appears that they are all moving towards a Great Attractor in the Norma or Shapley Supercluster.
Next we take a look at additional galaxies within a billion light years of us including: ESO 510 -- G13; NGC 6782; ESO 243-49 HLX-1 with a supermassive back hole in its disk; Stephan's Quintet; interacting galaxies NGC 1409 and NGC 1410; interacting galaxies ARP 127 and NGC 5679; galaxy cluster Abell S0740; ESO 325-G004 with its unique gravitational lens arcs called Einstein's rings; and finish with the very interesting Hoag's Object.
We end with a map of all the superclusters where we highlight the ones we've seen and show the dot that represents our local volume.
STEM
- published: 19 Aug 2013
- views: 49730
Hitomi Measures Perseus Galaxy Cluster's X-ray Winds
- Order: Reorder
- Duration: 3:27
- Updated: 06 Jul 2016
- views: 19406
Measurements of unprecedented detail returned by Japan's Hitomi satellite have allowed scientists to track the motion of X-ray-emitting gas at the heart of the ...
Measurements of unprecedented detail returned by Japan's Hitomi satellite have allowed scientists to track the motion of X-ray-emitting gas at the heart of the Perseus cluster of galaxies for the first time. The results showcase the long-awaited premiere of a next-generation X-ray instrument whose key components were developed at NASA's Goddard Space Flight Center in Greenbelt, Maryland.
Led by the Japan Aerospace Exploration Agency (JAXA), Hitomi was launched on Feb. 17. Following the successful activation of the observatory and instruments, Hitomi suffered a mission-ending spacecraft anomaly on March 26.
Before its demise, though, Hitomi was able to peer into the Perseus cluster of galaxies, an assemblage of thousands of galaxies bound together by gravity. Located about 240 million light-years away and named for its host constellation, the Perseus galaxy cluster contains a vast amount of extremely hot gas. At temperatures averaging 90 million degrees Fahrenheit (50 million degrees Celsius), the gas glows brightly in X-rays. Prior to Hitomi's launch, astronomers lacked the capability to measure the detailed dynamics of this gas, particularly its relationship to bubbles of gas expelled by an active supermassive black hole in the cluster's core galaxy, NGC 1275.
For the first time, thanks to Hitomi's revolutionary Soft X-ray Spectrometer (SXS), an instrument developed and built by Goddard scientists working closely with colleagues from several institutions in the United States, Japan, and the Netherlands, astronomers have mapped the motion of X-ray-emitting gas in a cluster of galaxies and shown it moves at cosmically modest speeds.
The total range of gas velocities directed toward or away from Earth within the area observed by Hitomi was found to be about 365,000 miles an hour (590,000 kilometers per hour) -- enormous by human standards but surprisingly modest on cosmic scales. The observed velocity range indicates that turbulence is responsible for only about 4 percent of the total gas pressure. This result is of particular interest to astrophysicists. Turbulent pressure was a previously unmeasured quantity that could significantly impact estimates of the cluster's mass. The SXS measurements show that only minor corrections are needed.
The Perseus observation provides a tantalizing glimpse of the tremendous advance that X-ray microcalorimetry will bring to astrophysics. U.S. researchers pioneered development of the technology in the 1980s, but Hitomi's all-too-brief run represents its most successful space application to date.
Credit: NASA's Goddard Space Flight Center
Music: "Natural Awe" and "To the Tower" from Killer Tracks
Read more: http://www.nasa.gov/feature/goddard/2016/hitomi-mission-charts-hot-winds-of-a-galaxy-cluster-for-the-first-time
This video is public domain and along with other supporting visualizations can be downloaded from the Scientific Visualization Studio at http://svs.gsfc.nasa.gov/12297
If you liked this video, subscribe to the NASA Goddard YouTube channel: http://www.youtube.com/NASAExplorer
Or subscribe to NASA’s Goddard Shorts HD Podcast: http://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html
Follow NASA’s Goddard Space Flight Center
· Facebook: http://www.facebook.com/NASA.GSFC
· Twitter http://twitter.com/NASAGoddard
· Flickr http://www.flickr.com/photos/gsfc/
· Instagram http://www.instagram.com/nasagoddard/
· Google+ http://plus.google.com/+NASAGoddard/posts
wn.com/Hitomi Measures Perseus Galaxy Cluster's X Ray Winds
Measurements of unprecedented detail returned by Japan's Hitomi satellite have allowed scientists to track the motion of X-ray-emitting gas at the heart of the Perseus cluster of galaxies for the first time. The results showcase the long-awaited premiere of a next-generation X-ray instrument whose key components were developed at NASA's Goddard Space Flight Center in Greenbelt, Maryland.
Led by the Japan Aerospace Exploration Agency (JAXA), Hitomi was launched on Feb. 17. Following the successful activation of the observatory and instruments, Hitomi suffered a mission-ending spacecraft anomaly on March 26.
Before its demise, though, Hitomi was able to peer into the Perseus cluster of galaxies, an assemblage of thousands of galaxies bound together by gravity. Located about 240 million light-years away and named for its host constellation, the Perseus galaxy cluster contains a vast amount of extremely hot gas. At temperatures averaging 90 million degrees Fahrenheit (50 million degrees Celsius), the gas glows brightly in X-rays. Prior to Hitomi's launch, astronomers lacked the capability to measure the detailed dynamics of this gas, particularly its relationship to bubbles of gas expelled by an active supermassive black hole in the cluster's core galaxy, NGC 1275.
For the first time, thanks to Hitomi's revolutionary Soft X-ray Spectrometer (SXS), an instrument developed and built by Goddard scientists working closely with colleagues from several institutions in the United States, Japan, and the Netherlands, astronomers have mapped the motion of X-ray-emitting gas in a cluster of galaxies and shown it moves at cosmically modest speeds.
The total range of gas velocities directed toward or away from Earth within the area observed by Hitomi was found to be about 365,000 miles an hour (590,000 kilometers per hour) -- enormous by human standards but surprisingly modest on cosmic scales. The observed velocity range indicates that turbulence is responsible for only about 4 percent of the total gas pressure. This result is of particular interest to astrophysicists. Turbulent pressure was a previously unmeasured quantity that could significantly impact estimates of the cluster's mass. The SXS measurements show that only minor corrections are needed.
The Perseus observation provides a tantalizing glimpse of the tremendous advance that X-ray microcalorimetry will bring to astrophysics. U.S. researchers pioneered development of the technology in the 1980s, but Hitomi's all-too-brief run represents its most successful space application to date.
Credit: NASA's Goddard Space Flight Center
Music: "Natural Awe" and "To the Tower" from Killer Tracks
Read more: http://www.nasa.gov/feature/goddard/2016/hitomi-mission-charts-hot-winds-of-a-galaxy-cluster-for-the-first-time
This video is public domain and along with other supporting visualizations can be downloaded from the Scientific Visualization Studio at http://svs.gsfc.nasa.gov/12297
If you liked this video, subscribe to the NASA Goddard YouTube channel: http://www.youtube.com/NASAExplorer
Or subscribe to NASA’s Goddard Shorts HD Podcast: http://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html
Follow NASA’s Goddard Space Flight Center
· Facebook: http://www.facebook.com/NASA.GSFC
· Twitter http://twitter.com/NASAGoddard
· Flickr http://www.flickr.com/photos/gsfc/
· Instagram http://www.instagram.com/nasagoddard/
· Google+ http://plus.google.com/+NASAGoddard/posts
- published: 06 Jul 2016
- views: 19406
ARNOLD STEINER - GALACTIC CLUSTER
- Order: Reorder
- Duration: 5:01
- Updated: 17 Oct 2012
- views: 694
Two 50-galaxy Cluster Crash Simulation
- Order: Reorder
- Duration: 1:28
- Updated: 25 Feb 2008
- views: 4227
This movie is a 160 thousand particle simulation of two galaxy clusters, each with fifty galaxies, on a collision course. This simulation was presented in the p...
This movie is a 160 thousand particle simulation of two galaxy clusters, each with fifty galaxies, on a collision course. This simulation was presented in the paper Berrington & Dermer ApJ, 2003, 594, 709. The galaxy particles (both luminous and dark matter particles) are shown in white. The cluster wide dark matter is shown by the transparent orange particles.
A higher resolution version of this movie can be found at http://rberring.iweb.bsu.edu/animations.html
wn.com/Two 50 Galaxy Cluster Crash Simulation
This movie is a 160 thousand particle simulation of two galaxy clusters, each with fifty galaxies, on a collision course. This simulation was presented in the paper Berrington & Dermer ApJ, 2003, 594, 709. The galaxy particles (both luminous and dark matter particles) are shown in white. The cluster wide dark matter is shown by the transparent orange particles.
A higher resolution version of this movie can be found at http://rberring.iweb.bsu.edu/animations.html
- published: 25 Feb 2008
- views: 4227
Comparison Of The Entire Universe (Updated 2011) Moons, Planets, Stars, Nebulas, Galaxies, Clusters
- Order: Reorder
- Duration: 10:01
- Updated: 25 Jan 2011
- views: 578078
Comparison of the entire universe. From the smallest dwarf planets, to planets, to stars, to nebulas, to galaxies and to the universe.
Songs, in order, are:...
Comparison of the entire universe. From the smallest dwarf planets, to planets, to stars, to nebulas, to galaxies and to the universe.
Songs, in order, are: "Generations", "Age of Discovery" and "Serenata Immortale".
All are made by Immediate Music.
Notes:
Some of the images on the internet was really bad so I had to make some stars and such for myself so don't complain that you can't find some images (or if you don't like them cause trust me, the alternative was much worse).
If you have a question send me a message.
Strongly recommend to watch in higher quality.
All measurements are in diameter.
Sizes aren´t completely right and they may vary in the future.
Scales in the video might not be exact but a very good estimate.
wn.com/Comparison Of The Entire Universe (Updated 2011) Moons, Planets, Stars, Nebulas, Galaxies, Clusters
Comparison of the entire universe. From the smallest dwarf planets, to planets, to stars, to nebulas, to galaxies and to the universe.
Songs, in order, are: "Generations", "Age of Discovery" and "Serenata Immortale".
All are made by Immediate Music.
Notes:
Some of the images on the internet was really bad so I had to make some stars and such for myself so don't complain that you can't find some images (or if you don't like them cause trust me, the alternative was much worse).
If you have a question send me a message.
Strongly recommend to watch in higher quality.
All measurements are in diameter.
Sizes aren´t completely right and they may vary in the future.
Scales in the video might not be exact but a very good estimate.
- published: 25 Jan 2011
- views: 578078
Flash Galaxy Cluster Merger, Simulated using the Flash Code, Mass Ratio 1:1
- Order: Reorder
- Duration: 3:17
- Updated: 09 Aug 2010
- views: 33095
Since structure in the universe forms in a bottom-up fashion, with smaller structures merging to form larger ones, modeling the merging process in detail is cru...
Since structure in the universe forms in a bottom-up fashion, with smaller structures merging to form larger ones, modeling the merging process in detail is crucial to our understanding of cosmology. At the current epoch, we observe clusters of galaxies undergoing mergers. It is seen that the two major components of galaxy clusters, the hot intracluster gas and the dark matter, behave very differently during the course of a merger. Using the N-body and hydrodynamics capabilities in the FLASH code, we have simulated a suite of representative galaxy cluster mergers, including the dynamics of both the dark matter, which is collisionless, and the gas, which has the properties of a fluid. 3-D visualizations such as these demonstrate clearly the different behavior of these two components over time.
Credits:
Science: John Zuhone (Harvard-Smithsonian Center for Astrophysics
Visualization: Jonathan Gallagher (Flash Center, University of Chicago)
This research used resources of the Argonne Leadership Computing Facility at Argonne National Laboratory, which is supported by the Office of Science of the U.S. Dept. of Energy (DOE) under contract DE-AC02-06CH11357. This research was supported by the National Nuclear Security Administration's (NNSA) Advanced Simulation and Computing (ASC) Academic Strategic Alliance Program (ASAP).
wn.com/Flash Galaxy Cluster Merger, Simulated Using The Flash Code, Mass Ratio 1 1
Since structure in the universe forms in a bottom-up fashion, with smaller structures merging to form larger ones, modeling the merging process in detail is crucial to our understanding of cosmology. At the current epoch, we observe clusters of galaxies undergoing mergers. It is seen that the two major components of galaxy clusters, the hot intracluster gas and the dark matter, behave very differently during the course of a merger. Using the N-body and hydrodynamics capabilities in the FLASH code, we have simulated a suite of representative galaxy cluster mergers, including the dynamics of both the dark matter, which is collisionless, and the gas, which has the properties of a fluid. 3-D visualizations such as these demonstrate clearly the different behavior of these two components over time.
Credits:
Science: John Zuhone (Harvard-Smithsonian Center for Astrophysics
Visualization: Jonathan Gallagher (Flash Center, University of Chicago)
This research used resources of the Argonne Leadership Computing Facility at Argonne National Laboratory, which is supported by the Office of Science of the U.S. Dept. of Energy (DOE) under contract DE-AC02-06CH11357. This research was supported by the National Nuclear Security Administration's (NNSA) Advanced Simulation and Computing (ASC) Academic Strategic Alliance Program (ASAP).
- published: 09 Aug 2010
- views: 33095
close fullscreen
- Playlist
- Chat
close fullscreen
- Playlist
- Chat
4:11
Laniakea: Our home supercluster
Superclusters – regions of space that are densely packed with galaxies – are the biggest s...
published: 03 Sep 2014
Laniakea: Our home supercluster
Laniakea: Our home supercluster
- Report rights infringement
- published: 03 Sep 2014
- views: 3707189
2:29
Biggest Galaxy Cluster in Early Universe Found
A group of U.S. astronomers, including those from the University of Missouri and MIT, used...
published: 11 Jan 2016
Biggest Galaxy Cluster in Early Universe Found
Biggest Galaxy Cluster in Early Universe Found
- Report rights infringement
- published: 11 Jan 2016
- views: 2133
9:10
Stars, Galaxies, Galaxy Clusters, and Superclusters
Cameron Gibelyou of the University of Michigan Physics Department explains the astronomica...
published: 12 Aug 2011
Stars, Galaxies, Galaxy Clusters, and Superclusters
Stars, Galaxies, Galaxy Clusters, and Superclusters
- Report rights infringement
- published: 12 Aug 2011
- views: 7323
45:24
The Search for Cosmic Clusters - Space Documentary
They are the one-stop-shopping places for learning all about the nature and variety of sta...
published: 02 Jan 2016
The Search for Cosmic Clusters - Space Documentary
The Search for Cosmic Clusters - Space Documentary
- Report rights infringement
- published: 02 Jan 2016
- views: 807
19:54
How Far Away Is It - 14 - Local Superclusters (1080p)
Text at http://howfarawayisit.com/documents/
In this segment of our "How far away is it" ...
published: 19 Aug 2013
How Far Away Is It - 14 - Local Superclusters (1080p)
How Far Away Is It - 14 - Local Superclusters (1080p)
- Report rights infringement
- published: 19 Aug 2013
- views: 49730
3:27
Hitomi Measures Perseus Galaxy Cluster's X-ray Winds
Measurements of unprecedented detail returned by Japan's Hitomi satellite have allowed sci...
published: 06 Jul 2016
Hitomi Measures Perseus Galaxy Cluster's X-ray Winds
Hitomi Measures Perseus Galaxy Cluster's X-ray Winds
- Report rights infringement
- published: 06 Jul 2016
- views: 19406
5:01
ARNOLD STEINER - GALACTIC CLUSTER
Taken From the Album " Songs For Venus" by "Arnold Steiner" released on Transient Force in...
published: 17 Oct 2012
ARNOLD STEINER - GALACTIC CLUSTER
1:28
Two 50-galaxy Cluster Crash Simulation
This movie is a 160 thousand particle simulation of two galaxy clusters, each with fifty g...
published: 25 Feb 2008
Two 50-galaxy Cluster Crash Simulation
Two 50-galaxy Cluster Crash Simulation
- Report rights infringement
- published: 25 Feb 2008
- views: 4227
10:01
Comparison Of The Entire Universe (Updated 2011) Moons, Planets, Stars, Nebulas, Galaxies, Clusters
Comparison of the entire universe. From the smallest dwarf planets, to planets, to stars, ...
published: 25 Jan 2011
Comparison Of The Entire Universe (Updated 2011) Moons, Planets, Stars, Nebulas, Galaxies, Clusters
Comparison Of The Entire Universe (Updated 2011) Moons, Planets, Stars, Nebulas, Galaxies, Clusters
- Report rights infringement
- published: 25 Jan 2011
- views: 578078
3:17
Flash Galaxy Cluster Merger, Simulated using the Flash Code, Mass Ratio 1:1
Since structure in the universe forms in a bottom-up fashion, with smaller structures merg...
published: 09 Aug 2010
Flash Galaxy Cluster Merger, Simulated using the Flash Code, Mass Ratio 1:1
Flash Galaxy Cluster Merger, Simulated using the Flash Code, Mass Ratio 1:1
- Report rights infringement
- published: 09 Aug 2010
- views: 33095
Laniakea: Our home supercluster...
Biggest Galaxy Cluster in Early Universe Found...
Stars, Galaxies, Galaxy Clusters, and Supercluster...
The Search for Cosmic Clusters - Space Documentary...
How Far Away Is It - 14 - Local Superclusters (108...
Hitomi Measures Perseus Galaxy Cluster's X-ray Win...
ARNOLD STEINER - GALACTIC CLUSTER...
Two 50-galaxy Cluster Crash Simulation...
Comparison Of The Entire Universe (Updated 2011) M...
Flash Galaxy Cluster Merger, Simulated using the F...
photo: Creative Commons / Gage Skidmore
Donald Trump rebuts criticism by slain Muslim-American soldier's father at Democratic convention
Edit DNA India 31 Jul 2016
--> Sun, 31 Jul 2016-09.04am , New York , Reuters. Khizr Khan won widespread praise when he spoke at the Democratic National Convention (DNC), telling the story of his son, US Army Captain Humayun Khan, killed by a bomb in Iraq in 2004 ... . "I think I';ve made a lot of sacrifices," Trump told ABC News in excerpts of an interview posted on Saturday. "I work very, very hard." ... "I said ... ....
photo: WN / Periasamy
Hot air balloon carrying at least 16 people crashes in Texas
Edit San Francisco Chronicle 30 Jul 2016
LOCKHART, Texas (AP) — Federal officials say a hot air balloon carrying at least 16 people caught on fire and crashed in Central Texas, and it is unclear whether there are injuries or deaths. Lynn Lunsford with the Federal Aviation Administration said in a statement that the accident happened about 8.40 a.m. Saturday near Lockhart, Texas, when the hot air balloon crashed into a pasture ... Lockhart is about 30 miles south of Austin ... ....
photo: AP / James Vertuno
Officials: No apparent survivors in Texas balloon crash
Edit The Miami Herald 31 Jul 2016
A hot air balloon carrying at least 16 people caught on fire and crashed in Central Texas on Saturday, and there did not appear to be any survivors, authorities said. Authorities would not confirm the exact number of deaths, but Lynn Lunsford with the Federal Aviation Administration said the balloon was carrying at least 16 people and the Caldwell County Sheriff's Office said in a statement that it didn't look like anyone survived ... ....
photo: Creative Commons / Gage Skidmore
World waits with bated breath as Trump, Clinton close conventions; power in voters’ hands
Edit Indonesia News 31 Jul 2016
WASHINGTON, U.S. – Now that both the extravagant Republican National Convention and the equally grandiose Democratic National Convention have come to a close, battle lines have been drawn, sides hav ... ....
« back to news headlines
Government to come up with single window for cluster development
Edit DNA India 31 Jul 2016
Maharashtra government is considering setting up of a one window system to approve the 33(9) cluster redevelopment projects across Mumbai ... "Cluster development is the only solution to redevelop of 16,000-odd old and dilapidated buildings in south Mumbai. In cluster development, the developer gets the floor space index of 4 ... The cluster development concept was introduced in 2005....
ICLK2016: RAISING THE STANDARDS OF UNIVERSAL HERITAGE THROUGH LOCAL KNOWLEDGE (Universiti Sains Malaysia)
Edit Public Technologies 31 Jul 2016
'Among the local knowledge dimensions to be given focus currently would be in relation to the academic ecosystem, and also its relevancy to the community, the industry and economy towards income generation, and I am hoping that in the coming years, this conference would also seek the involvement of the industries,' he explained, also in his capacity as the advisor of the USM Local Knowledge Cluster....
Brutal heat keeps tomatoes from producing
Edit Albuquerque Journal 31 Jul 2016
Q ... A ... That’s it! ... Advertisement ... Q ... A. I’m going to bet that if you inspect the shiny places on the crepe bushes, up close just where the leaf joins the stem, you’ll notice clusters of aphids – wee, green, six-legged, sometimes winged creatures living happily on the plants ... It’s fairly sticky and, if there are enough aphid colonies clustering on the plant, you usually see that shiny or drippy look like you say ... ....
Making smart moves to leave a mark
Edit The Hindu 31 Jul 2016
Youngsters pitted their wits against each other on the 64-square board at The Hindu In School Chess Competition 2016, which got underway at Shrimati Indira Gandhi College in the city on Saturday. Well before the start of the first round, the R.V. Auditorium at the college was bustling with activity ... And a few were busy getting doubts clarified from their coaches ... Ms ... Meanwhile, city boy S ... Parthasarathy, Cluster Head, Axis Bank, Tiruchi ... ....
Knight Riders made to wait after slipping against Patriots
Edit Jamaica Observer 31 Jul 2016
He faced 28 balls and struck two fours and three sixes, adding 27 with Amla for the second wicket and a further 31 with Ramnaresh Sarwan (9) for the third wicket ... They lost wickets in clusters with Umar Akmal (5) and Denesh Ramdin falling to leg-spinner Samuel Badree in successive deliveries in the 14th over, and captain Dwayne Bravo (9) and Kevon Cooper (0) also departing in successive balls to Santokie in the 16th over ... ....
PU apprises students of IPR issues
Edit The Times of India 31 Jul 2016
CHANDIGARH. A two-day workshop on 'Innovations. A key to Intellectual Property Rights (IPR)' organized by Cluster Innovation Centre in Biotechnology (CIC-B), Panjab University, concluded here on Saturday. As many as 80 students participated in the workshop ... Director, CSIR-CSIO, Chandigarh, Prof RK Sinha delved on various stakeholders in promoting the awareness about IPR and protecting it for the growth and development of our country....
Archaeology: Experts find importance in mysterious Hopewell Earthworks
Edit The Columbus Dispatch 31 Jul 2016
In a new book devoted to exploring multiple perspectives on the Newark Earthworks, two archaeologists who specialize in different regions of the Americas offer differing views on the grandest achievement of Ohio’s Hopewell culture ... But while some archaeologists interpret Chaco as a sacred landscape and pilgrimage destination, Lekson said the cluster of stone great houses, such as Pueblo Bonito, are something more down to earth....
These maps show the impact of New York City shutting down the L train
Edit Business Insider 31 Jul 2016
CARTO. New York City just announced it will be severing its L train service for 18 months in 2019, isolating Brooklyn’s infamous hipster kingdoms from Manhattan. Amid ironic jokes and genuine consternation , Bushwick’s young techies are scrambling to adapt, using the skills they have at hand. The result ... Bushwick, Brownsville and East New York, and South Williamsburg are among the high-poverty clusters (in purple), per the analysis ... ....
Down memory lane: Forest Rights Act yet to achieve major milestones
Edit The Times of India 31 Jul 2016
The Scheduled Tribes and Other Traditional Forest Dwellers Act (Recognition of Forest Rights) Act, 2006, or the Forest Rights Act (FRA), is among India's most important legislation since 2005, along with the Right to Information Act and the Right to Education Act ... Source ... Rights' Path ... A cluster of 12 villages, about 80 km from Korba city, have made use of FRA provisions to stand up to the forest department on different issues....
Ministries included in new clusters
Edit The Hindu 30 Jul 2016
The Narendra Modi government has moved the Ministry of Rural Development from ‘Economic/ Commerce cluster to the Social Sector cluster’ and Food Processing from the social sector to infrastructure ... The Ministries and departments in the Government of India are bracketed under one of the four clusters — Social, Economic, Infrastructure and Regulatory....
- 1
- 2
- 3
- 4
- 5
- Next page »
