Friday, November 14, 2014

ScienceDaily: Stars News

ScienceDaily: Stars News


Intergalactic 'wind' is stripping galaxies of star-forming gas

Posted: 13 Nov 2014 12:29 PM PST

Astronomers have provided the first direct evidence that an intergalactic 'wind' is stripping galaxies of star-forming gas as they fall into clusters of galaxies. The observations help explain why galaxies found in clusters are known to have relatively little gas and less star formation when compared to non-cluster or 'field' galaxies.

The party's over for these youthful compact galaxies

Posted: 13 Nov 2014 11:00 AM PST

Scientists have uncovered young, massive, compact galaxies whose raucous star-making parties are ending early. The firestorm of star birth has blasted out most of the remaining gaseous fuel needed to make future generations of stars. Now the party's over for these gas-starved galaxies, and they are on track to possibly becoming so-called "red and dead galaxies," composed only of aging stars.

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