estimatingblackholemassesofagnsusingultravioletemissionlineproperties
文献类型：期刊论文
| 作者 | Minzhi Kong2; Xuebing Wu1; Ran Wang1; Jinlin Han2
|
| 刊名 | chinesejournalofastronomyandastrophysics
 |
| 出版日期 | 2006 |
| 卷号 | 6期号:4页码:396 |
| ISSN号 | 1009-9271 |
| 英文摘要 | Based on measured broad line region sizes in the reverberation-mapping AGN sample, two new empirical relations are introduced to estimate the central black hole masses of radio-loud high-redshift (z > 0.5) AGNs. First, using the archival IUE/HST spectroscopy data at UV band for the reverberation-mapping objects, we obtained two new empirical relations between the BLR size and Mg II/C IV emission line luminosity. Secondly, using the newly determined black hole masses of the reverberation-mapping sample as calibration, we found two new relationships for determining the black hole mass with the full width at half maximum and the luminosity of Mg II/C IV line. We then apply the relations to estimate the black hole masses of the AGNs in the Large Bright Quasar Survey and a sample of radio-loud quasars. For the objects with small radio-loudness, the black hole mass estimated using the R-BLR-L-Mg II/C IV relation is, consistent with that from the R-BLR-L-3000 angstrom/1350 angstrom relation. For radio-loud AGNs, however, the mass estimated from the R-BLR-L-Mg II/C IV relation is systematically lower than that from the continuum luminosity L (3000 angstrom/1350 angstrom). Because jets could have significant contributions to the UV/optical continuum luminosity of radio-loud AGNs, we emphasize once again that for radio-loud AGNs, the emission line luminosity may be a better tracer of the ionizing luminosity than the continuum luminosity, so that the relations between the BLR size and UV emission line luminosities should be used to estimate the black hole masses of. high redshift radio-loud AGNs. |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/44345]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.北京大学 2.中国科学院国家天文台 |
| 推荐引用方式 GB/T 7714 | Minzhi Kong,Xuebing Wu,Ran Wang,et al. estimatingblackholemassesofagnsusingultravioletemissionlineproperties[J]. chinesejournalofastronomyandastrophysics,2006,6(4):396. |
| APA | Minzhi Kong,Xuebing Wu,Ran Wang,&Jinlin Han.(2006).estimatingblackholemassesofagnsusingultravioletemissionlineproperties.chinesejournalofastronomyandastrophysics,6(4),396. |
| MLA | Minzhi Kong,et al."estimatingblackholemassesofagnsusingultravioletemissionlineproperties".chinesejournalofastronomyandastrophysics 6.4(2006):396. |
入库方式： OAI收割
来源：国家天文台
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