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arXiv 1909.01749astro-ph.GA
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超大质量黑洞与宿主星系的基本关系

The Fundamental Relation between Supermassive Black Holes and Their Host Galaxies

Stefano de Nicola, Alessandro Marconi, Giuseppe Longo

摘要:

我们研究了超大质量黑洞(BH)和它们的宿主星系之间的相关性,使用的样本83 BH质量收集的最新的和可靠的空间分辨估计可从文献中。我们确认SMBHs和他们的宿主星系的凸起之间的单变量和双变量的相关性,确认有效速度色散的相关性没有显着改善更高的维度。相反,伪凸起似乎并不与它们的SMBH相关,可能是因为它们的长期演化往往无法触发中央BH上的吸积。然后,我们提出了一种新的方法,旨在寻找SMBHs和它们的宿主星系之间的基本关系。首次将BH质量与基本平面(FP)解析地结合起来,表明Mbh-sigma_e似乎是基本关系,而不是Mbh-sigma_e-R_e类型的假定“BH基本平面”。这些结果可以用这样一幅图景来解释,即Mbh-sigma_e关系是活动星系核反馈从动量驱动到能量驱动变化的自然结果。然后通过FP建立其他标度关系。

英文摘要:

We study the correlations between Supermassive Black Holes (BH) and their host galaxies, using a sample of 83 BH masses collected from the most recent and reliable spatially resolved estimates available from the literature. We confirm the mono- and bivariate correlations between SMBHs and the bulges of their host galaxies, confirming that the correlation with the effective velocity dispersion is not significantly improved by higher dimensionality. Instead, pseudobulges do not seem to correlate with their SMBHs, probably because their secular evolution is often unable to trigger accretion onto the central BH. We then present a novel approach aimed at finding the fundamental relation between SMBHs and their host galaxies. For the first time, we analytically combine BH masses with the Fundamental Plane (FP), showing that Mbh-sigma_e appears to be the fundamental relation rather than a putative "BH Fundamental Plane" of the kind Mbh-sigma_e-R_e. These results can be explained by a picture which sees the Mbh-sigma_e relation as a natural outcome of the change in AGN feedback from momentum- to energy-driven. The other scaling relations are then established through the FP.

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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