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arXiv 1003.0036astro-ph.COastro-ph.GA
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PDMATHAAB- L_{bulge}关系中AGN黑洞质量和散射的精确解

Accurate AGN black hole masses and the scatter in the M_{bh} - L_{bulge} relationship

C. Martin Gaskell

摘要:

本文给出了一个由H β速度色散和5100埃连续光度估算活动星系核中黑洞质量的新的经验公式。它被校准到混响映射和黑洞质量的恒星动力学估计。由此产生的质量估计与混响映射和恒星动力学估计一样准确。新的质量估计表明,在高光度星系的M_{bh} - L_{bulge}关系中,散射非常小,而在低质量星系中,散射大大增加。

英文摘要:

A new empirical formulae is given for estimating the masses of black holes in AGNs from the H beta velocity dispersion and the continuum luminosity at 5100 Angstroms. It is calibrated to reverberation-mapping and stellar-dynamical estimates of black hole masses. The resulting mass estimates are as accurate as reverberation-mapping and stellar-dynamical estimates. The new mass estimates show that there is very little scatter in the M_{bh} - L_{bulge} relationship for high-luminosity galaxies, and that the scatter increases substantially in lower-mass galaxies.

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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