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arXiv 0907.1608astro-ph.COastro-ph.GA
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黑洞在星系形成和演化中的作用

The role of black holes in galaxy formation and evolution

A. Cattaneo, S. M. Faber, J. Binney, A. Dekel, J. Kormendy, R. Mushotzky, A. Babul, P. N. Best, M. Brueggen, A. C. Fabian, C. S. Frenk, A. Khalatyan, H. Netzer,… 展开作者

A. Cattaneo, S. M. Faber, J. Binney, A. Dekel, J. Kormendy, R. Mushotzky, A. Babul, P. N. Best, M. Brueggen, A. C. Fabian, C. S. Frenk, A. Khalatyan, H. Netzer, A. Mahdavi, J. Silk, M. Steinmetz, L. Wisotzki

摘要:

几乎所有的大质量星系,包括我们自己的星系,都有质量从数百万到数十亿太阳质量的中央黑洞。这些黑洞的增长释放出大量的能量,为类星体和其他较弱的活动星系核提供动力。这些能量中的一小部分,如果被宿主星系吸收,可能会通过加热和喷射周围的气体来停止恒星的形成。星系演化中的一个核心问题是这个过程在多大程度上导致了大型椭圆星系中恒星形成的下降,这些星系通常没有多少冷气体和年轻恒星,不像螺旋星系。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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