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arXiv 2007.03010astro-ph.GA
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M31黑洞偏移的起源

The origin of the black hole offset in M31

Pierre Boldrini

摘要:

使用最先进的高分辨率完全GPU N体模拟,我们首次证明了暗物质丰富的卫星的坠落自然地解释了M31中亚秒差距偏移的黑洞。潮汐特征的观测数据对我们的模拟初始条件提供了严格的约束。M31的中心区域的加热卫星通过动力摩擦需要一个显着的黑洞偏移后的第一个近心通道。在达到其最大偏移量后,由于动力学摩擦,大质量黑洞向M31中心下沉,并且根据观测结果确定其偏移量为亚秒差距。

英文摘要:

Using state-of-the-art high-resolution fully GPU N-body simulations, we demonstrate for the first time that the infall of a dark matter rich satellite naturally explains a present black hole offset by sub-parsecs in M31. Observational data of the tidal features provide stringent constraints on the initial conditions of our simulations. The heating of the central region of M31 by the satellite via dynamical friction entails a significant black hole offset after the first pericentric passage. After having reached its maximum offset, the massive black hole sinks towards the M31 centre due to dynamical friction and it is determined to be offset by sub-parsecs as derived by observations.

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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