| Do Radio-loud Active Galactic Nuclei really follow the same MBH-σ＊ Relation as Normal Galaxies？ |
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| 作者姓名： | Yi Liu and Dong-Rong Jiang Shanghai Astronomical Observatory Chinese Academy of Sciences Shanghai Graduate School of Chinese Academy of Sciences Beijing |
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| 作者单位： | Yi Liu and Dong-Rong Jiang Shanghai Astronomical Observatory，Chinese Academy of Sciences，Shanghai 200030; Graduate School of Chinese Academy of Sciences，Beijing 100049 |
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| 基金项目： | Supported by the National Natural Science Foundation of China. |
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| 摘 要： | In an examination of the relationship between the black hole mass MBH and stellar velocity dispersionσ* in radio-loud active galactic nuclei (AGNs), we studied two effects which may cause uncertainties in the black hole mass estimates of radio-loud AGNs: the relativistic beaming effect on the observed optical continuum radiation and the orientation effect on the broad emission line width. After correcting these two effects, we re-examined the MBH-σOIII] relation for a sample of radio-loud and radio-quiet AGNs, and found the relation for radio-loud AGNs still deviated from that for nearby normal galaxies and radio-quiet AGNs. We also found there is no significant correlation between radio jet power and narrow OIII] line width, indicating absence of strong interaction between radio jet and narrow line region. It may be that the deviation of the MBH-σ* relation of radio-loud AGNs is intrinsic, or that the OIII] line width is not a good indicator ofσ* for radio-loud AGNs.
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| 关 键 词： | 活动星系核 类星体 黑洞物质 宽线辐射 星噪 相关性 |
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