11-May-2008, 06:56 AM
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Senior Member
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Join Date: Sep 2005
Location: Sacramento, California
Posts: 2,514
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Here is another link on that same page...This a good article and pretty comprehensive....about Geez and her Team, And Sgr *A.
http://www.smithsonianmag.com/scienc...tml?c=y&page=3
Quote:
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With each new finding, the Milky Way's core becomes more perplexing and fascinating. Both Ghez's and Genzel's teams were startled to discover many massive young stars in the black hole's neighborhood. There are scores of them, all just five to ten million years old—infants, in cosmic terms—and they are roughly ten times as massive as our sun. No one is entirely sure how they got so close to the black hole. Elsewhere in the galaxy, gestating stars require a cold, calm womb within a large cloud of dust and gas. The galactic core is anything but calm: intense radiation floods the area, and the black hole's gravity should shred gaseous nurseries before anything incubates there. As Reinhard Genzel put it at a conference a few years ago, those young stars "have no damn right to be there." It's possible some of them were born farther out and migrated inward, but most theorists think they're too young for that scenario. Morris thinks the intense gravity compresses spiraling gas into a disk around the black hole, creating the new suns in a type of star birth not seen in any other galactic environment.
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RussT
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Everything is, as it should be, otherwise, it wouldn't be!
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