Big black holes may not stop star birth

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Bericht 30-01-'09, 18:01

Lathander

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Big black holes may not stop star birth

http://www.sciencenews.org/view/generic/id...stop_star_birth


Researchers often cite the whirlpool of activity generated by matter spiraling into supermassive black holes — which weigh millions to billions of times the sun’s mass and sit at the cores of galaxies — to explain why star formation halts and galaxies never exceed a maximum size. Models suggest that fierce winds or powerful radio jets produced as black holes pull in new material can warm up or even expel cold gas, keeping galaxies from growing bigger and depleting them of the raw material for making stars.
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