螺旋星系中GC系统与SMBH之间的关系:与M•- M*相关的联系

R. A. González-Lópezlira
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引用次数: 0

摘要

摘要探讨了螺旋星系中球状星团总数NGC与中心黑洞质量M•之间的关系。包括宇宙散射,log M•∝(1.64±0.24)log NGC。而在椭圆中,相关性是线性的[log M•∝(1.02±0.10)log NGC],因此可能是由于合并的统计收敛,这种机制不能解释螺旋中更陡峭的相关性。此外,我们从其与NGC的双斜率相关性中推导出恒星星系的总质量M* (Hudson et al. 2014)。在M•与M*参数空间中,M*由NGC推导,M•∝(1.48±0.18)log M*用于椭圆,M•∝(1.21±0.16)log M*用于螺旋。观察到的椭圆和螺旋之间的一致可能意味着黑洞和星系通过“平静”吸积、AGN反馈和其他长期过程共同演化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The relation between GC systems and SMBH in spiral galaxies: The link to the M• – M* correlation
Abstract We explore the relationship between globular cluster total number, NGC, and central black hole mass, M•, in spiral galaxies. Including cosmic scatter, log M• ∝ (1.64 ± 0.24) log NGC. Whereas in ellipticals the correlation is linear [log M• ∝ (1.02 ± 0.10) log NGC], and hence could be due to statistical convergence through mergers, this mechanism cannot explain the much steeper correlation in spirals. Additionally, we derive total stellar galaxy mass, M*, from its two-slope correlation with NGC (Hudson et al. 2014). In the M• versus M* parameter space, with M* derived from NGC, M• ∝ (1.48 ± 0.18) log M* for ellipticals, and M• ∝ (1.21 ± 0.16) log M* for spirals. The observed agreement between ellipticals and spirals may imply that black holes and galaxies co-evolve through “calm” accretion, AGN feedback and other secular processes.
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