Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics
Scientific paper
2009-07-09
Nature 460:213-219,2009
Astronomy and Astrophysics
Astrophysics
Cosmology and Extragalactic Astrophysics
Nature Review 7 pages, 5 figures
Scientific paper
10.1038/nature08135
Virtually all massive galaxies, including our own, host central black holes ranging in mass from millions to billions of solar masses. The growth of these black holes releases vast amounts of energy that powers quasars and other weaker active galactic nuclei. A tiny fraction of this energy, if absorbed by the host galaxy, could halt star formation by heating and ejecting ambient gas. A central question in galaxy evolution is the degree to which this process has caused the decline of star formation in large elliptical galaxies, which typically have little cold gas and few young stars, unlike spiral galaxies.
Babul Arif
Best Philip N.
Binney James
Brueggen Marcus
Cattaneo Andrea
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