CORRELATIONS AMONG THE JET, ACCRETION DISK, AND BROAD-LINE REGION OF FLAT SPECTRUM RADIO QUASARS
文献类型：期刊论文
| 作者 | Zhang, J; Xue, ZW; He JJ(贺健健) ; Zhang SN(张双南); He, JJ; Liang, EW; Zhang, SN
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2015 |
| 卷号 | 807期号:1页码:51 |
| 关键词 | accretion BL Lacertae objects: general galaxies: jets galaxies: Seyfert quasars: general accretion disks |
| 英文摘要 | On the basis of the spectral energy distribution fits and emission line fluxes of 18 GeV flat spectrum radio quasars (FSRQs), we calculate their jet power (P-jet), disk luminosity (L-disk), and broad-line region luminosity (L-BLR). No correlation between P-jet with either L-disk or L-BLR is found, but L-BLR is strongly correlated with L-disk. On average, the broad-line region (BLR) covering factors of GeV-FSRQs in our sample are smaller than those of large samples of quasars. P-jet of some GeV-FSRQs are higher than their L-disk, but all of them are lower than the accretion power of black holes (BHs), which is estimated by (M) over dotc(2) = L-disk/0.1, indicating that the total accretion power of BHs is sufficient to drive the jets in these sources; however,. lack of correlation between L-disk and P-jet of the GeV-FSRQs may suggest that their jets are launched by the Blandford-Znajek process via extracting the rotational energy of BHs. Using the L-BLR-L-disk relation of the GeV-FSRQs, we estimate L-disk of a BL Lac sample with their L-BLR. A comparison of L-BLR and the Eddington ratio (L-disk/L-Edd) among BL Lacs, very radio-loud NLS1 galaxies, and FSRQs is also presented. It is found that along with the BL Lac-NLS1-FSRQ sequence L-BLR and L-disk/L-Edd increase, which may correspond to the change of the accretion disk structure and the transformation of the dominant mechanism for jet launching. This is also consistent with the division of blazar parent populations, i.e., low/high-excitation radio galaxies. |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 收录类别 | SCI |
| WOS记录号 | WOS:000358945200051 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/228573]  |
| 专题 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Zhang, J,Xue, ZW,He JJ,et al. CORRELATIONS AMONG THE JET, ACCRETION DISK, AND BROAD-LINE REGION OF FLAT SPECTRUM RADIO QUASARS[J]. ASTROPHYSICAL JOURNAL,2015,807(1):51. |
| APA | Zhang, J.,Xue, ZW.,贺健健.,张双南.,He, JJ.,...&Zhang, SN.(2015).CORRELATIONS AMONG THE JET, ACCRETION DISK, AND BROAD-LINE REGION OF FLAT SPECTRUM RADIO QUASARS.ASTROPHYSICAL JOURNAL,807(1),51. |
| MLA | Zhang, J,et al."CORRELATIONS AMONG THE JET, ACCRETION DISK, AND BROAD-LINE REGION OF FLAT SPECTRUM RADIO QUASARS".ASTROPHYSICAL JOURNAL 807.1(2015):51. |
入库方式： OAI收割
来源：高能物理研究所
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