News tagged with galactic evolution
Cosmic 'leaf blower' robs galaxy of star-making fuel
(PhysOrg.com) -- Supernova explosions and the jets of a monstrous black hole are scattering a galaxy's star-making gas like a cosmic leaf blower, a new study finds. The findings, which relied on ultraviolet ...
Apr 04, 2012 |
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Stellar astrophysics explains the behavior of fast rotating neutron stars in binary systems
Pulsars are among the most exotic celestial bodies known. They have diameters of about 20 kilometres, but at the same time roughly the mass of our sun. A sugar-cube sized piece of its ultra-compact matter ...
Feb 02, 2012 |
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New instrument peers through the heart of the Milky Way
(PhysOrg.com) -- Astronomy has a powerful new tool to probe the structure of our galaxy. The Apache Point Observatory Galactic Evolution Experiment (APOGEE) spectrograph is the newest instrument deployed by ...
Jan 09, 2012 |
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Strange new 'species' of ultra-red galaxy discovered
In the distant reaches of the universe, almost 13 billion light-years from Earth, a strange species of galaxy lay hidden. Cloaked in dust and dimmed by the intervening distance, even the Hubble Space Telescope ...
Dec 01, 2011 |
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Small distant galaxies host supermassive black holes
(PhysOrg.com) -- Using the Hubble Space Telescope to probe the distant universe, astronomers have found supermassive black holes growing in surprisingly small galaxies. The findings suggest that central black ...
Sep 15, 2011 |
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Tracking binary black holes
Two scientists from the Kavli Institute for Particle Astrophysics and Cosmology have been testing a method to look past the intense radiation pouring out of merging galaxy pairs to see the supermassive black ...
Aug 03, 2011 |
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Raging storms sweep away galactic gas
(PhysOrg.com) -- ESA's Herschel infrared space observatory has detected raging winds of molecular gas streaming away from galaxies. Suspected for years, these outflows may have the power to strip galaxies ...
May 09, 2011 |
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Pitt Astronomer Leads Search for Supernovae, Star-Gobbling Black Holes for International Telescope Project
(PhysOrg.com) -- A University of Pittsburgh physics and astronomy professor will lead a multiyear effort to use the world's most powerful digital camera to search the sky for explosive and violent deep-space ...
Jun 23, 2010 |
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On the deceleration behaviour of black holes
(PhysOrg.com) -- Researchers use the concept of "anti-kick" to explain why the speed suddenly decreases after the collision of such exotic objects.
Jun 04, 2010 |
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Galactic nuclei offer some indication of axionlike particles
(PhysOrg.com) -- “Axionlike particles are interesting because they come up regularly when scientists study string theory. By looking at their properties, you hope to learn about string theory, or some other unified theory ...
May 28, 2009 |
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Infant galaxies -- small and hyperactive
Galaxies, including our own Milky Way, consist of hundreds of billions of stars. How did such gigantic galactic systems come into being? Did a central region with stars first form then with time grow? Or did ...
Feb 05, 2009 |
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