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Old 11-23-2011, 03:18 PM
 
Location: Texas
5,070 posts, read 9,078,959 times
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"We show that not only there is enough mass in the gas flows in halos of galaxies to sustain star formation over billions of years, but also the mass in the hot halos of star-forming galaxies is phenomenal–as large as the mass of gas in the disk of a galaxy," says Lehner.Clouds of ionized hydrogen within 20,000 light years of the Milky Way disk contain enough material to make 100 million suns. About one solar mass of that gas falls into the Milky Way every year, comparable to the rate at which our galaxy makes stars. The cycle could continue for several billion years.
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