Seyfert1星系黑洞质量与辐射压的研究

Black hole mass and radiation pressure of Seyfert 1 galaxies

从斯隆数字巡天(SDSS)收集了214个Seyfert 1星系,其中147个窄线的Seyfert 1星系(NLS1s),67个宽线的Seyfert 1星系(BLS1s),对其黑洞质量、核球速度弥散、爱丁顿比、5100A光度、红移进行了研究,得到以下结论:1)在进行黑洞质量估算时,应考虑辐射压的影响,特别是窄线Seyfert 1星系;2)在考虑辐射压的情况下,窄线Seyfert 1星系到宽线Seyfert 1星系演化,与他人用其他方法获得的结果是一致的.

We collect 214 Seyfert 1 galaxies （147 narrow line Seyfert 1 and 67 broad line Seyfert 1） and research black hole mass, bulge velocity dispersion, Eddington ratio, luminosity at 5100A and red＇shift. Our conclusions are follows： （1） when computing black hole mass, we should consider the effect of radiation pressure, especially for the narrow line Seyfert 1 galaxies; （2） when the effect of radiation pressure is considered, narrow line Seyfert 1 galaxies meet MBH-Cr relation of normal galaxies and are in sub-Eddington accretion; （3） in a large samples, the evolution of Seyfert 1 galaxies is from narrow line Seyfert 1 galaxies to broad line Seyfert 1 galaxies, which is consistent with other results obtained in different ways.