News tagged with galaxy cluster
Colliding galaxy cluster unravelled
An international team of astronomers has used the International LOFAR Telescope from ASTRON, the Netherlands Institute for Radio Astronomy, to study the formation of the galaxy cluster Abell 2256.
May 24, 2012 |
4.8 / 5 (4) |
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VISTA views a vast ball of stars
(Phys.org) -- A new image of Messier 55 from ESO's VISTA infrared survey telescope shows tens of thousands of stars crowded together like a swarm of bees. Besides being packed into a relatively small space, ...
May 09, 2012 |
3.7 / 5 (6) |
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Subaru telescope discovers the most distant protocluster of galaxies
Using the Subaru Telescope, a team of astronomers led by Jun Toshikawa (The Graduate University for Advanced Studies, Japan), Dr. Nobunari Kashikawa (National Astronomical Observatory of Japan), and Dr. Kazuaki ...
May 05, 2012 |
4.9 / 5 (7) |
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Hubble sees the eye of the storm in galaxy cluster
This image from the NASA/ESA Hubble Space Telescope could seem like a quiet patch of sky at first glance. But zooming into the central part of a galaxy cluster — one of the largest structures of the Universe ...
May 05, 2012 |
3.7 / 5 (12) |
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'Ridiculously' dim bevy of stars found beyond Milky Way
(Phys.org) -- A team of American, Canadian and Chilean astronomers have stumbled onto a remarkably faint cluster of stars orbiting the Milky Way that puts out as much light as only 120 modest Sun-like stars. ...
Apr 27, 2012 |
4.7 / 5 (16) |
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Do the Milky Way's companions spell trouble for dark matter?
(Phys.org) -- Astronomers from the University of Bonn in Germany have discovered a vast structure of satellite galaxies and clusters of stars surrounding our Galaxy, stretching out across a million light years. ...
Apr 25, 2012 |
4.2 / 5 (15) |
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Japan astronomers find most distant galaxy cluster
Japanese astronomers said Wednesday they had found a cluster of galaxies 12.72 billion light-years away from Earth, which they claim is the most distant cluster ever discovered.
Apr 25, 2012 |
4.7 / 5 (15) |
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Image: Hubble peeks inside a stellar cloud
(Phys.org) -- These bright stars shining through what looks like a haze in the night sky are part of a young stellar grouping in one of the largest known star formation regions of the Large Magellanic Cloud ...
Apr 23, 2012 |
5 / 5 (4) |
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The earth is not at rest
(Phys.org) -- The Earth is not at rest. It orbits the Sun, which in turn orbits the center of the Milky Way Galaxy, which in turn moves within the Local Group of Galaxies - a collection of about fifty four ...
Apr 18, 2012 |
4.5 / 5 (19) |
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Hubble's panoramic view of a turbulent star-making region
(Phys.org) -- Several million stars are vying for attention in this NASA/ESA Hubble Space Telescope image of a raucous stellar breeding ground in 30 Doradus, located in the heart of the Tarantula nebula.
Apr 17, 2012 |
4.7 / 5 (6) |
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Discovery of the Musket Ball Cluster
(Phys.org) -- Using a combination of powerful observatories in space and on the ground, astronomers have observed a violent collision between two galaxy clusters in which so-called normal matter has been wrenched ...
Apr 12, 2012 |
4.8 / 5 (4) |
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South Pole Telescope hones in on dark energy, neutrinos
Analysis of data from the 10-meter South Pole Telescope is providing new support for the most widely accepted explanation of dark energy — the source of the mysterious force that is responsible for the ...
Apr 02, 2012 |
4.8 / 5 (11) |
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Public to get access to spectacular infrared images of galaxies
For the first time, the general public will be able to browse detailed infrared images of more than 200 galaxies. The pictures, originating from data from the orbiting Spitzer Space Telescope, will be released ...
Space & Earth / Space Exploration
Mar 27, 2012 |
5 / 5 (3) |
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Detection of cosmic effect may bring universe's formation into sharper focus
(PhysOrg.com) -- The first observation of a cosmic effect theorized 40 years ago could provide astronomers with a more precise tool for understanding the forces behind the universe's formation and growth, ...
Mar 20, 2012 |
4.9 / 5 (16) |
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Astronomers map dark matter distribution in 3D in Abell 383 galaxy cluster
(PhysOrg.com) -- Two teams of astronomers have used data from NASA's Chandra X-ray Observatory and other telescopes to map the distribution of dark matter in a galaxy cluster known as Abell 383, which is located ...
Mar 14, 2012 |
4.8 / 5 (9) |
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Galaxy groups and clusters
Galaxy groups and clusters are the largest known gravitationally bound objects to have arisen thus far in the process of cosmic structure formation. They form the densest part of the large scale structure of the universe. In models for the gravitational formation of structure with cold dark matter, the smallest structures collapse first and eventually build the largest structures, clusters of galaxies. Clusters are then formed relatively recently between 10 billion years ago and now. Groups and clusters may contain from ten to thousands of galaxies. The clusters themselves are often associated with larger groups called superclusters.
For more information about Galaxy groups and clusters, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
