| Correlation between eddington ratios and broad-line luminosities in flat-spectrum radio quasars, BL lacertae objects, and radio galaxies | |
Dai H(戴宏)1,2,3 ; Xie GZ(谢光中)1; Zhou, SB2; Li HZ(李怀珍)1,4; Chen, LE4; Ma, L5; Dai, H (reprint author), Chinese Acad Sci, Natl AStron Observ, Yunnan Observ, Kunming, Peoples R China.
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| 发表期刊 | ASTRONOMICAL JOURNAL
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| 2007-05 | |
| 卷号 | 133期号:5页码:2187-2191 |
| DOI | 10.1086/511769 |
| 产权排序 | 第1完成单位 |
| 收录类别 | SCI |
| 关键词 | Galaxies : Active Accretion Galaxies : Evolution Accretion Disks Galaxies : Nuclei |
| 摘要 | We compiled a sample of 16 flat-spectrum radio quasars (FSRQs), 8 BL Lac objects, and 15 Fanaroff-Riley (FR) I and FR II radio galaxies, for which the intrinsic Eddington ratios and broad-line luminosities are available. In the diagram of the intrinsic Eddington ratio-broad-line luminosity relation, FSRQs are found in the high broad-line luminosity, high intrinsic Eddington ratio region, while BL Lac objects, as well as FR I and FR II radio galaxies, are found in the low broad-line luminosity, low intrinsic Eddington ratio region. In addition, the intrinsic Eddington ratios are strongly correlated with the broad- line luminosities and also with the intrinsic bolometric luminosities, but the correlation with the broad- line luminosities is better. Thus, the broad- line luminosity, rather than the intrinsic bolometric luminosity, should be used as a fundamental parameter of the unified scheme and evolution of active galactic nuclei. On the other hand, we analyze the theory proposed by Czerny and coworkers that the formation of the broad-line region (BLR) is intrinsically connected to the existence of a cold accretion disk. Our studies support that BLR formation is intimately connected with the cold disk. Thus, our results provide solid experimental evidence for the theory that has been proposed by Czerny and coworkers. |
| 语种 | 英语 |
| 学科领域 | Astronomy & Astrophysics |
| 文章类型 | Article |
| ISSN | 0004-6256 |
| URL | 查看原文 |
| 归档日期 | 2007-04-18 |
| WOS记录号 | WOS:000246342200031 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | ACTIVE GALACTIC NUCLEI ; SUPERMASSIVE BLACK-HOLES ; FR-I ; EVOLUTIONARY SEQUENCE ; BLAZAR UNIFICATION ; ACCRETION RATES ; LOUD QUASARS ; MASSES ; CONSTRAINTS ; CONNECTION |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/7026 |
| 专题 | 星系研究组 |
| 通讯作者 | Dai, H (reprint author), Chinese Acad Sci, Natl AStron Observ, Yunnan Observ, Kunming, Peoples R China. |
| 作者单位 | 1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming, China 2.Yunnan Astrophysics Center, Yunnan University, Kunming, China 3.Graduate of the Chinese Academy of Sciences, Beijing, China 4.Physics Department, Yuxi Normal University, Yuxi, China 5.Physical Department, Yunnan Normal University, Kunming, China |
| 第一作者单位 | 中国科学院云南天文台 |
| 推荐引用方式 GB/T 7714 | Dai H,Xie GZ,Zhou, SB,et al. Correlation between eddington ratios and broad-line luminosities in flat-spectrum radio quasars, BL lacertae objects, and radio galaxies[J]. ASTRONOMICAL JOURNAL,2007,133(5):2187-2191. |
| APA | Dai H.,Xie GZ.,Zhou, SB.,Li HZ.,Chen, LE.,...&Dai, H .(2007).Correlation between eddington ratios and broad-line luminosities in flat-spectrum radio quasars, BL lacertae objects, and radio galaxies.ASTRONOMICAL JOURNAL,133(5),2187-2191. |
| MLA | Dai H,et al."Correlation between eddington ratios and broad-line luminosities in flat-spectrum radio quasars, BL lacertae objects, and radio galaxies".ASTRONOMICAL JOURNAL 133.5(2007):2187-2191. |
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