News tagged with ngc 4921
Exceptionally deep view of strange galaxy
Feb 05, 2009 |
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(PhysOrg.com) -- The Coma Galaxy Cluster, in the northern constellation of Coma Berenices, the hair of Queen Berenice, is one of the closest very rich collections of galaxies in the nearby Universe. The cluster, ...
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Maps Unveil the Source of Starburst Galaxy's Winds
Nov 18, 2009 |
5 / 5 (8) |
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(PhysOrg.com) -- A research group at Kyoto University has discovered that shocks are the primary energy sources that excite the galactic wind region of starburst galaxy NGC 253. Their images of the center ...
NGC 4710 galaxy: Baffling boxy bulge (w/ Video)
Nov 18, 2009 |
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(PhysOrg.com) -- Just as many people are surprised to find themselves packing on unexplained weight around the middle, astronomers find the evolution of bulges in the centres of spiral galaxies puzzling. A ...
Mysterious X-rays from a Nearby Galaxy
Nov 13, 2009 |
4.3 / 5 (15) |
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(PhysOrg.com) -- The nucleus of an active galaxy, an AGN, contains a massive black hole that is vigorously accreting material. In the process it typically ejects jets of particles and radiates brightly at ...
Swift, XMM-Newton satellites tune into a middleweight black hole
Nov 10, 2009 |
4.7 / 5 (3) |
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(PhysOrg.com) -- While astronomers have studied lightweight and heavyweight black holes for decades, the evidence for black holes with intermediate masses has been much harder to come by. Now, astronomers ...
Rapid supernova could be new class of exploding star
Nov 05, 2009 |
4.7 / 5 (18) |
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(PhysOrg.com) -- An unusual supernova rediscovered in seven-year-old data may be the first example of a new type of exploding star, possibly from a binary star system where helium flows from one white dwarf ...
University of Utah celebrates telescope's 'first light'
Nov 04, 2009 |
4 / 5 (2) |
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(PhysOrg.com) -- The University of Utah will celebrate the initial observations or "first light" of its new $860,000 research telescope in southwest Utah during a Wednesday, Nov. 11 symposium and reception ...
Fermi Telescope Detects Gamma-Ray From 'Star Factories' in Other Galaxies
Nov 02, 2009 |
4 / 5 (2) |
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Nearby galaxies undergoing a furious pace of star formation also emit lots of gamma rays, say astronomers using NASA's Fermi Gamma-ray Space Telescope. Two so-called "starburst" galaxies, plus a satellite ...
Opening up a colorful cosmic jewel box
Oct 29, 2009 |
4.5 / 5 (6) |
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(PhysOrg.com) -- Star clusters are among the most visually alluring and astrophysically fascinating objects in the sky. One of the most spectacular nestles deep in the southern skies near the Southern Cross ...
X-Ray Jets from Galaxies
Oct 19, 2009 |
4.5 / 5 (4) |
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(PhysOrg.com) -- Some dramatic galaxies eject gigantic, collimated jets of ionized gas millions of light-years long, powered by the massive black holes at their centers. The ionized jets are detected at radio ...
The Milky Way's tiny but tough galactic neighbor
Oct 14, 2009 |
4.3 / 5 (13) |
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In the new ESO image, Barnard's Galaxy glows beneath a sea of foreground stars in the direction of the constellation of Sagittarius (the Archer). At the relatively close distance of about 1.6 million light-years, ...
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