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Greedy Galaxies Gobbled Gas, Stalling Star Formation Billions Of Years Ago
Arp 147 contains a spiral galaxy (right) that collided with an elliptical galaxy (left), triggering a wave of star formation. Credit: X-ray: NASA/CXC/MIT/S.Rappaport et al, Optical: NASA/STScI
Like millionaires that burn through their cash too quickly, astronomers have found one factor behind why compact elliptical galaxies stopped growing stars about 11 billion years ago: they ate through their gas reserves.
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Read the rest of Greedy Galaxies Gobbled Gas, Stalling Star Formation Billions Of Years Ago (394 words)
© Elizabeth Howell for Universe Today, 2014. |
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Post tags: 3d-hst, compact elliptical galaxies, Hubble Space Telescope, Spitzer Space Telescope, Subaru Telescope, submillimeter astronomy, submillimeter galaxies
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Source: http://www.universetoday.com/108720/greedy-galaxies-gobbled-gas-stalling-star-formation-billions-of-years-ago/
