News tagged with halo of stars
Giant galaxy Messier 87 finally sized up
May 20, 2009 |
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The new observations reveal that Messier 87's halo of stars has been cut short, with a diameter of about a million light-years, significantly smaller than expected, despite being about three times the extent ...
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Discovery shows Milky Way halo is split in two
Dec 12, 2007 |
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The Milky Way is an iconic fixture of the night sky for Australians, but if looking at it makes you feel dizzy it could be because distinct parts of the system are spinning in different directions.
Dark Matter in a Galaxy
Oct 30, 2009 |
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(PhysOrg.com) -- Stars, the most familiar objects in the night sky, make up only a tiny percentage of the total amount of matter in the universe -- about 2%.
Astronomers discover an enormous halo of red giant stars around Andromeda
Jan 08, 2007 |
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Astronomers have found an enormous halo of stars bound to the Andromeda galaxy and extending far beyond the swirling disk seen in images of the famous galaxy, our nearest large galactic neighbor. The discovery, reported at ...
Theft of a million stars
Feb 13, 2006 |
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Using ESO's Very Large Telescope, a team of Italian astronomers reveal the troubled past of the stellar cluster Messier 12 – our Milky Way galaxy ‘stole’ close to one million low-mass stars from it.
Andromeda's Stellar Halo Shows Galaxy's Origin to Be Similar to That of Milky Way
Feb 28, 2006 |
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For the last decade, astronomers have thought that the Andromeda galaxy, our nearest galactic neighbor, was rather different from the Milky Way. But a group of researchers have determined that the two galaxies ...
Dramatically backlit dust in giant galaxy
Apr 07, 2009 |
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A new Hubble image highlights striking swirling dust lanes and glittering globular clusters in oddball galaxy NGC 7049.
Invisible hand in invisible matter
Oct 06, 2009 |
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(PhysOrg.com) -- An international team of astronomers have found an unexpected link between mysterious 'dark matter' and the visible stars and gas in galaxies that could revolutionise our current understanding ...
A dark matter disk in our Galaxy
Sep 16, 2008 |
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(PhysOrg.com) -- An international team of scientists predict that our Galaxy, the Milky Way, contains a disk of ‘dark matter’. In a paper published in Monthly Notices of the Royal Astronomical Society, astronomers ...
Ultracool stars take 'wild rides' around, outside the Milky Way
Jun 09, 2009 |
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Astronomers have found that stars of a recently discovered type, dubbed ultracool subdwarfs, take some pretty wild rides as they orbit around the Milky Way, following paths that are very different from those of typical stars. ...
Computer Finds Massive Black Hole in Nearby Galaxy
Jun 09, 2009 |
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Astronomers Karl Gebhardt of The University of Texas at Austin and Jens Thomas of the Max Planck Institute for Extraterrestrial Physics have used new computer modeling techniques to discover that the black ...
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