Supermassive black holes do not correlate with dark matter haloes of galaxies
Supermassive black holes do not correlate with dark matter haloes of galaxies
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DOI：
10.1038/nature09695
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发表时间：
2011-01
期刊：
影响因子：
64.8
通讯作者：
J. Kormendy;R. Bender
中科院分区：
文献类型：
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作者：
J. Kormendy;R. Bender
当观测到的星系足够接近，搜索是可行的时，在所有含有凸起成分的星系中都探测到了超大质量黑洞。再加上观察到更大的黑洞生活在更大的凸起中，这导致了黑洞生长和凸起形成相互调节的信念。也就是说，黑洞和凸起共同进化。因此，关于黑洞和可见星系所处的暗物质晕之间类似相关性的报道具有深远的意义。暗物质很可能是非重子物质，因此这些报告表明，未知的奇异物理控制着黑洞的生长。在这里，我们表明，部分基于最近对无凸起星系的测量，除非星系也包含凸起，否则暗物质和测量黑洞的参数之间几乎没有相关性。我们的结论是，黑洞与暗物质没有直接关系。它们也与星系盘无关。因此，黑洞只与凸起共同演化。这简化了它们共同演化的谜团，因为它把注意力集中在星系合并中产生膨胀的纯重子过程上。
Supermassive black holes have been detected in all galaxies that contain bulge components when the galaxies observed were close enough that the searches were feasible. Together with the observation that bigger black holes live in bigger bulges,,,, this has led to the belief that black-hole growth and bulge formation regulate each other. That is, black holes and bulges coevolve. Therefore, reports,of a similar correlation between black holes and the dark matter haloes in which visible galaxies are embedded have profound implications. Dark matter is likely to be non-baryonic, so these reports suggest that unknown, exotic physics controls black-hole growth. Here we show, in part on the basis of recent measurements of bulgeless galaxies, that there is almost no correlation between dark matter and parameters that measure black holes unless the galaxy also contains a bulge. We conclude that black holes do not correlate directly with dark matter. They do not correlate with galaxy disks, either,. Therefore, black holes coevolve only with bulges. This simplifies the puzzle of their coevolution by focusing attention on purely baryonic processes in the galaxy mergers that make bulges.