News tagged with massive galaxy
Related topics: galaxies
Dark Energy Measurement Sheds New Light on Universe's Expansion
(PhysOrg.com) -- Through observations of massive galaxy clusters, scientists have made the most precise measurements to date of the effects of dark energy and gravity on cosmological scales. This work is an ...
Jul 15, 2010 |
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How Much Mass Makes a Black Hole? Astronomers Challenge Current Theories
(PhysOrg.com) -- Using ESO's Very Large Telescope, European astronomers have for the first time demonstrated that a magnetar -- an unusual type of neutron star -- was formed from a star with at least 40 times ...
Aug 18, 2010 |
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Astronomers calculate mass of largest black hole yet
(PhysOrg.com) -- Weighing 6.6 billion solar masses, the black hole at the center of galaxy M87 is the most massive black hole for which a precise mass has been measured. Using the Frederick C. Gillett Gemini ...
Jan 14, 2011 |
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Giant ultraviolet rings found in resurrected galaxies
Astronomers have found mysterious, giant loops of ultraviolet light in aged, massive galaxies, which seem to have a second lease on life. Somehow these "over-the-hill galaxies" have been infused with fresh ...
Aug 11, 2010 |
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Dark matter or background noise? Results intriguing but not conclusive
Physicists may have glimpsed a particle that is a leading candidate for mysterious dark matter but say conclusive evidence remains elusive.
Feb 11, 2010 |
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Dark matter core defies explanation
(PhysOrg.com) -- Astronomers using data from NASA's Hubble Telescope have observed what appears to be a clump of dark matter left behind from a wreck between massive clusters of galaxies. The result could ...
Mar 02, 2012 |
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New class of black holes discovered
A new class of black hole, more than 500 times the mass of the Sun, has been discovered by an international team of astronomers.
Jul 01, 2009 |
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Ghosts of the future: First giant structures of the universe
(PhysOrg.com) -- Astronomers using the South Pole Telescope report that they have discovered the most massive galaxy cluster yet seen at a distance of 7 billion light-years. The cluster (designated SPT-CL ...
Oct 13, 2010 |
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Discovery poses challenge to galaxy formation theories
A team led by an Indiana University astronomer has found a sample of massive galaxies with properties that suggest that they may have formed relatively recently. This would run counter to the widely-held belief ...
Apr 10, 2009 |
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The central region of the Milky Way
(PhysOrg.com) -- The center of our Milky Way galaxy is about 27,000 light-years away in the direction of the constellation of Sagittarius. At the very center of the galaxy lies a black hole whose mass is about ...
Aug 15, 2011 |
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A star is torn
A University of Sydney researcher was part of an international team of astronomers that has observed an incredibly rare event that occurs once every 10,000 years per galaxy.
Aug 08, 2011 |
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Astronomers use galactic magnifying lens to probe elusive dark energy
A team of astronomers has used a massive galaxy cluster as a cosmic magnifying lens to study the nature of dark energy for the first time. When combined with existing techniques, their results significantly ...
Aug 19, 2010 |
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Astrophysicists discover new galaxy clusters revealed by cosmic 'shadows'
An international team of scientists led by Rutgers University astrophysicists have discovered 10 new massive galaxy clusters from a large, uniform survey of the southern sky. The survey was conducted using ...
Nov 01, 2010 |
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Astronomers watch instant replay of powerful stellar eruption
Astronomers are watching the astronomical equivalent of an instant replay of a spectacular outburst from the unstable, behemoth double-star system Eta Carinae, which was initially seen on Earth nearly 170 ...
Feb 15, 2012 |
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Galaxies Demand a Stellar Recount
(PhysOrg.com) -- For decades, astronomers have gone about their business of studying the cosmos with the assumption that stars of certain sizes form in certain quantities. Like grocery stores selling melons ...
Aug 19, 2009 |
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