论文标题
一种基于冠状线的新型黑洞质量缩放关系，并得到积聚预测的支持
A novel black-hole mass scaling relation based on Coronal lines and supported by accretion predictions
论文作者
论文摘要
从天文对象中获得电离连续体的形状和性质的见解通常是通过间接方法来完成的，因为高能光子被我们的星系吸收。这项工作探讨了使用无处不在的冠状线线活性银河核（AGN）的电离连续体。 Using bona-fide BH mass estimates from reverberation mapping and the line ratio [Si VI] 1.963 micron/Br$γ_{\rm broad}$ as tracer of the AGN ionizing continuum, a novel BH-mass scaling relation of the form log($M_{\rm BH}) = (6.40\pm 0.17) - (1.99\pm 0.37）\ times $ log（[si vi]/br $γ_ {\ rm broad}）$，在BH质量间隔上，$ 10^6-10^8 $ m $ m $ _ {\ odot} $带有分散剂0.47 DEX。在薄的积聚盘近似之后，在测量了冠状线生产的基本参数空间之后，我们认为驱动这种抗相关的关键参数是增生盘的有效温度，这是由冠状线气体有效采样的。因此，观察到的反相关与薄的积聚盘预测$ t _ {\ rm {disc}}} \ propto {m _ {\ rm bh}}^{ - 1/4} $。
Getting insights on the shape and nature of the ionizing continuum in astronomical objects is often done via indirect methods as high energy photons are absorbed by our Galaxy. This work explores the ionization continuum of active galactic nuclei (AGN) using the ubiquitous coronal lines. Using bona-fide BH mass estimates from reverberation mapping and the line ratio [Si VI] 1.963 micron/Br$γ_{\rm broad}$ as tracer of the AGN ionizing continuum, a novel BH-mass scaling relation of the form log($M_{\rm BH}) = (6.40\pm 0.17) - (1.99\pm 0.37) \times$ log ([Si VI]/Br$γ_{\rm broad})$, over the BH mass interval, $10^6 - 10^8$ M$_{\odot}$ with dispersion 0.47 dex is found. Following on the thin accretion disc approximation and after surveying a basic parameter space for coronal lines production, we believe that a key parameter driving this anti-correlation is the effective temperature of the accretion disc, this being effectively sampled by the coronal line gas. Accordingly, the observed anti-correlation becomes formally in line with the thin accretion disc prediction $T_{\rm{disc}} \propto {M_{\rm BH}}^{-1/4}$.
