arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.00098astro-ph.GAastro-ph.CO
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基本$M_{\rm BH}$ - $σ$关系的情况

The case for the fundamental $M_{\rm BH}$-$σ$ relation

Christopher Marsden, Francesco Shankar, Michele Ginolfi, Kastytis Zubovas

摘要:

宿主星系的性质(如恒星质量、球质量、光度、有效半径等)与其核超大质量黑洞的质点之间存在强标度关系,并趋向于紧密的协同演化。在这项工作中,我们首先回顾以前的努力支持超大质量黑洞质量和恒星速度色散($M_{\rm BH}$ - $σ_{\rm e}$)之间的关系的根本重要性。然后,我们提出了进一步的原始工作支持这一主张,通过残差分析和主成分分析适用于一些最新的汇编本地星系样本与动态测量的超大质量黑洞质量。最后,我们审查的主要物理场景有利于存在一个$M_{\rm BH}$ - $σ_{\rm e}$的关系,重点是动量驱动的外流。

英文摘要:

Strong scaling relations between host galaxy properties (such as stellar mass, bulge mass, luminosity, effective radius etc) and their nuclear supermassive black hole's mass point towards a close co-evolution. In this work, we first review previous efforts supporting the fundamental importance of the relation between supermassive black hole mass and stellar velocity dispersion ($M_{\rm BH}$-$σ_{\rm e}$). We then present further original work supporting this claim via analysis of residuals and principal component analysis applied to some among the latest compilations of local galaxy samples with dynamically measured supermassive black hole masses. We conclude with a review of the main physical scenarios in favour of the existence of a $M_{\rm BH}$-$σ_{\rm e}$ relation, with a focus on momentum-driven outflows.

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