论文标题
测定活性银核中超质量黑洞事件范围内的磁场强度
Determination of magnetic field strength on the event horizon of supermassive black holes in active galactic nuclei
论文作者
论文摘要
我们估计了活动范围的活动视野强度，用于活跃银河核（AGN）中的超质量黑洞（SMBH）样品。我们的估计是使用吸积盘与视线线的倾斜角值进行的，我们先前从可见光谱中的光谱极化观测值中获得了。我们还使用了来自宽线区域的光谱线$h_β$的全宽度的公布值，smbhs的质量和5100 Angstrom处的AGN的光度。此外，我们还使用了有关从其X射线光谱获得的SMBH旋转的文献数据。我们的估计表明，AGNS中大多数SMBH的磁场强度从几个至数十万kg不等，平均值约为$ 10^4 $ g。同时，对于单个对象，磁场的大得多 - 数百公斤甚至1 mg的顺序。
We estimated the magnetic field strength at the event horizon for a sample of supermassive black holes (SMBHs) in active galactic nuclei (AGNs). Our estimates were made using the values of the inclination angles of the accretion disk to the line of sight, that we obtained previously from spectropolarimetric observations in the visible spectrum. We also used published values of full width at half maximum (FWHM) of spectral line $H_β$ from broad line region, masses of SMBHs and luminosity of AGNs at 5100 angstrom. In addition we used literature data on the spins of SMBHs obtained from their X-ray spectra. Our estimates showed that the magnetic field strength at the event horizon of the majority of SMBHs in AGNs ranges from several to tens of kG and have mean values of about $10^4$G. At the same time, for individual objects, the fields are significantly larger - of the order of hundreds kG or even 1 MG.
