星系中心大黑洞的宇宙学演化
发布时间：2018-08-03 10:49
【摘要】：在冷暗物质晕等级成团宇宙学模型中,伴随着暗物质晕并合,星系中心黑洞也断地并合和增长.于展Press-Schechter公式(EPS)我们编写了一自适应时间长Monte Carlo程序,重构了表征暗物质晕等级成团并合树.在成功地建立了黑洞和暗物质晕宇宙学演化模型后,我们通过引入直接吸积(包标准薄盘吸积和磁流体力学吸积)和随吸积两类黑洞吸积模式,论了黑洞自旋和质量宇宙学演化.通过与观测到AGN光度函数比较,我们发现黑洞通过磁流体力学吸积模式增长,与观测符合最好.于以上理论框架,我们还研究了双大质量黑洞演化,发现双黑洞通过共转气体吸积盘吸积对双黑洞质量比分存在显著影响.
[Abstract]:In the cluster cosmological model of cold dark matter halo, with the combination of dark matter halo, the central black hole of a galaxy is also broken off to merge and grow. Based on the Press-Schechter formula (EPS), we have written an adaptive long time Monte Carlo program to reconstruct the cluster union tree which represents the level of dark matter halo. After successfully establishing the cosmological evolution model of black hole and dark matter halo, we introduce two kinds of black hole accretion models: direct accretion (including standard thin disk accretion and magnetohydrodynamic accretion) and accretion with accretion. The spin of black hole and the evolution of mass cosmology are discussed. Compared with the observed AGN photometric function, we find that the black hole grows through the magnetohydrodynamic accretion model, which is in good agreement with the observation. Based on the above theoretical framework, we also study the evolution of double-mass black holes. It is found that the mass score of double black holes is significantly affected by accretion of two black holes through a corotating gas accretion disk.
【作者单位】： 中国科学院星系与宇宙学重点实验室;中国科学技术大学天文学系;
【基金】：国家自然科学基金(批准号:11073020,10733010,11133005) 国家重点基础研究发展计划(编号:2009CB824800,2012CB821800) 中央高校基本科研业务费专项资金(编号:WK2030220004)资助项目
【分类号】：P145.8
[Abstract]:In the cluster cosmological model of cold dark matter halo, with the combination of dark matter halo, the central black hole of a galaxy is also broken off to merge and grow. Based on the Press-Schechter formula (EPS), we have written an adaptive long time Monte Carlo program to reconstruct the cluster union tree which represents the level of dark matter halo. After successfully establishing the cosmological evolution model of black hole and dark matter halo, we introduce two kinds of black hole accretion models: direct accretion (including standard thin disk accretion and magnetohydrodynamic accretion) and accretion with accretion. The spin of black hole and the evolution of mass cosmology are discussed. Compared with the observed AGN photometric function, we find that the black hole grows through the magnetohydrodynamic accretion model, which is in good agreement with the observation. Based on the above theoretical framework, we also study the evolution of double-mass black holes. It is found that the mass score of double black holes is significantly affected by accretion of two black holes through a corotating gas accretion disk.
【作者单位】： 中国科学院星系与宇宙学重点实验室;中国科学技术大学天文学系;
【基金】：国家自然科学基金(批准号:11073020,10733010,11133005) 国家重点基础研究发展计划(编号:2009CB824800,2012CB821800) 中央高校基本科研业务费专项资金(编号:WK2030220004)资助项目
【分类号】：P145.8
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