arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0705.4457astro-ph
收藏

大质量黑洞和宿主球体生长的综合燃料控制理论

Towards a Comprehensive Fueling-Controlled Theory on the Growth of Massive Black Holes and Host Spheroids

Andres Escala

摘要:

研究了有核大质量黑洞与其宿主椭球引力势之间的关系。利用AMR数值模拟,我们分析了气体是如何在星系的核(中央kpc)区域的运输。我们研究气体燃料的内部吸积盘(次pc尺度)和恒星形成的大规模核盘一样,通常发现在原球状体(ULIRGs,SCUBA星系)。这些sub-pc分辨率模拟的气体燃料,主要是耗尽恒星形成自然满足'M_BH - $M_维里'的关系,与散射远小于观察到的。我们发现了一个广义的Kennicutt-Schmidt定律,其中总气体消耗率(dot{M}_gas = dot{M}_BH + dot{M}_SF)是M_gas/t_orbit的比例。我们还发现,在燃料控制的情况下,“M_BH -σ”关系是“M_BH - M_维里”关系的副产品。

英文摘要:

We study the relation between nuclear massive black holes and their host spheroid gravitational potential. Using AMR numerical simulations, we analyze how gas is transported in the nuclear (central kpc) regions of galaxies. We study the gas fueling onto the inner accretion disk (sub-pc scale) and the star formation in a massive nuclear disk like those generally found in proto-spheroids (ULIRGs, SCUBA Galaxies). These sub-pc resolution simulation of gas fueling that is mainly depleted by star formation naturally satisfy the `M_BH - $M_virial' relation, with a scatter considerably less than the observed one. We found a generalized version of Kennicutt-Schmidt Law for starbursts is satisfied, in which the total gas depletion rate (dot{M}_gas = dot{M}_BH + dot{M}_SF) is the one that scales as M_gas/t_orbital. We also found that the `M_BH - sigma' relation is a byproduct of the `M_BH - M_virial' relation in the fueling controlled scenario.

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。

↑