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The relation between the mid-infrared emission and Black Hole Mass in Active Galactic Nuclei: A direct way to probe black hole growth?

机译：活跃银河核中中红外发射与黑洞质量之间的关系：探测黑洞生长的直接方法？

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摘要

We use a large, heterogeneous sample of local active galactic nuclei (AGN) that includes Seyfert 1s, Seyfert 2s and PG quasars to investigate for the first time the relation between black hole mass (M_BH) and mid-infrared nuclear emission. We find a clear relation between M_BH and the 10 micron nuclear luminosity for these local AGNs. There are no significant differences between type 1 and type 2 objects, implying that the reprocessing of the 10 micron nuclear emission is not severely affected by geometric and optical depth effects. We also confirm that M_BH is related to the 2-10keV X-ray luminosity, but only for the Compton thin galaxies. We present a theoretical basis for these empirical relations and discuss possible reasons for the observed scatter. Our results show that rest-frame 10 micron and hard X-ray luminosities (especially the former, which is applicable to all AGN types) can be powerful tools for conducting a census of black hole masses at high redshift and for probing their cosmological evolution.
机译：我们使用包含塞弗特1s，塞弗特2s和PG类星体的本地活跃星系核（AGN）的大量异类样本，首次研究了黑洞质量（M_BH）与中红外核发射之间的关系。对于这些局部AGN，我们发现M_BH与10微米核发光度之间存在明确的关系。 1型和2型物体之间没有显着差异，这意味着10微米核发射的后处理不受几何和光学深度效应的严重影响。我们还确认，M_BH与2-10keV X射线光度有关，但仅与康普顿薄星系有关。我们为这些经验关系提供了理论基础，并讨论了观察到的分散的可能原因。我们的结果表明，静止帧10微米和硬X射线光度（尤其是前者，适用于所有AGN类型）可以成为进行高红移普查黑洞质量并探测其宇宙演化的有力工具。

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