Black hole mass and radiation pressure of Seyfert 1 galaxies

作者:Xiong Ding Rong*; Zhang Xiong; Zheng Yong Gang; Huang Bang Rong; Mao Li Sheng; Liu Wen Guang; Cha Yong Juan
来源:Acta Physica Sinica, 2012, 61(22): 229801.
DOI:10.7498/aps.61.229801

摘要

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 5100 angstrom and redshift. 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 M-BH-sigma 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.

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