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首页> 外文期刊>The Astrophysical journal >MAGNETICALLY LEVITATING ACCRETION DISKS AROUND SUPERMASSIVE BLACK HOLES
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MAGNETICALLY LEVITATING ACCRETION DISKS AROUND SUPERMASSIVE BLACK HOLES

机译:磁性超悬浮黑洞周围的增生盘

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摘要

In this paper, we report on the formation of magnetically levitating accretion disks around supermassive black holes (SMBHs). The structure of these disks is calculated by numerically modeling tidal disruption of magnetized interstellar gas clouds. We find that the resulting disks are entirely supported by the pressure of the magnetic fields against the component of gravitational force directed perpendicular to the disks. The magnetic field shows ordered large-scale geometry that remains stable for the duration of our numerical experiments extending over 10% of the disk lifetime. Strong magnetic pressure allows high accretion rate and inhibits disk fragmentation. This in combination with the repeated feeding of magnetized molecular clouds to an SMBH yields a possible solution to the long-standing puzzle of black hole growth in the centers of galaxies.
机译:在本文中,我们报告了超大质量黑洞(SMBH)周围磁悬浮吸积盘的形成。这些盘的结构是通过对磁化的星际气云的潮汐破坏进行数值模拟来计算的。我们发现,所产生的圆盘完全由磁场的压力所支撑,而磁场的压力抵抗垂直于圆盘的重力分量。磁场显示出有序的大尺寸几何形状,在我们进行的数字实验期间,其几何形状保持稳定,扩展了磁盘寿命的10%以上。强大的磁压可提高吸积率并抑制磁盘碎片。结合将磁化的分子云重复馈送到SMBH,可以解决星系中心长期存在的黑洞增长难题。

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