Thursday, February 27, 2014

ScienceDaily: Stars News

ScienceDaily: Stars News


Bullying black holes force galaxies to stay red and dead

Posted: 25 Feb 2014 10:43 AM PST

Astronomers have discovered massive elliptical galaxies in the nearby Universe containing plenty of cold gas, even though the galaxies fail to produce new stars. Comparison with other data suggests that, while hot gas cools down in these galaxies, stars do not form because jets from the central supermassive black hole heat or stir up the gas and prevent it from turning into stars. Giant elliptical galaxies are the most puzzling type of galaxy in the Universe.

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