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galactic bulge |
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galactic bulge [gə¦lak·tik ′bəlj] (astronomy) A spheroidal distribution of stars that is centered on the nucleus of the Milky Way Galaxy and extends to a distance of about 3 kiloparsecs from the center. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| They found the surprising correlation between black holes and galactic bulges at about the same time that Gebhardt did. Holtzman and his colleagues used the Hubble Space Telescope's wide-field camera to peer through a relatively dust-free pathway, known as Baade's Window, into the galactic bulge. If the Soft Gamma Repeater source lies on the galactic bulge, where the X-ray bursters are believed to be, its discoverers calculate that it would have to be 1,500 times as bright as they are. |
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