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Gas In Galaxies At The End Of Their Lives – Food For New Stars
Monday, April 2, 2012 14:51
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Our knowledge and understanding of the cold gas in galaxies remains incomplete.
It has long been known that galaxies residing in dense environments, such as groups and clusters, form stars less actively than isolated galaxies. There has been on-going debate about why this is so.
One popular theory is that in dense environments, galaxies can no longer accrete gas (the fuel for star formation) from the external environment, and they simply starve to death over a timescale of a few billion years…. Rest of article with all images here:
