A PHYSICAL LINK BETWEEN JET FORMATION AND HOT PLASMA IN ACTIVE GALACTIC NUCLEI
文献类型：期刊论文
| 作者 | Wu, Qingwen1; Cao, Xinwu2 ; Ho, Luis C.3; Wang, Ding-Xiong1
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2013-06-10 |
| 卷号 | 770期号:1页码:1 |
| 关键词 | accretion black hole physics galaxies: active galaxies: jets X-rays: binaries accretion disks |
| 英文摘要 | Recent observations suggest that in black hole X-ray binaries jet/outflow formation is related to the hot plasma in the vicinity of the black hole, either in the form of an advection-dominated accretion flow at low accretion rates or in a disk corona at high accretion rates. We test the viability of this scenario for supermassive black holes using two samples of active galactic nuclei distinguished by the presence (radio-strong) and absence (radio-weak) of well-collimated, relativistic jets. Each is centered on a narrow range of black hole mass but spans a very broad range of Eddington ratios, effectively simulating in a statistical manner the behavior of a single black hole evolving across a wide spread in accretion states. Unlike the relationship between the radio and optical luminosity, which shows an abrupt break between high-and low-luminosity sources at an Eddington ratio of similar to 1%, the radio emission-a measure of the jet power-varies continuously with the hard X-ray (2-10 keV) luminosity, roughly as L-R proportional to L-X(0.6-0.75). This relation, which holds for both radio-weak and radio-strong active galaxies, is similar to the one seen in X-ray binaries. Jet/outflow formation appears to be closely linked to the conditions that give rise to the hot, optically thin coronal emission associated with accretion flows, both in the regime of low and high accretion rates. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | BLACK-HOLE MASS ; DWARF SEYFERT NUCLEI ; X-RAY BINARIES ; SPECTRAL ENERGY-DISTRIBUTIONS ; ADVECTION-DOMINATED ACCRETION ; RADIATIVELY INEFFICIENT ACCRETION ; RADIO-QUIET QUASARS ; LOW-LUMINOSITY ; NEARBY GALAXIES ; EMISSION-LINE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000319986400031 |
| 源URL | [http://119.78.226.72/handle/331011/18053]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China 2.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China 3.Observ Carnegie Inst Sci, Pasadena, CA 91101 USA |
| 推荐引用方式 GB/T 7714 | Wu, Qingwen,Cao, Xinwu,Ho, Luis C.,et al. A PHYSICAL LINK BETWEEN JET FORMATION AND HOT PLASMA IN ACTIVE GALACTIC NUCLEI[J]. ASTROPHYSICAL JOURNAL,2013,770(1):1. |
| APA | Wu, Qingwen,Cao, Xinwu,Ho, Luis C.,&Wang, Ding-Xiong.(2013).A PHYSICAL LINK BETWEEN JET FORMATION AND HOT PLASMA IN ACTIVE GALACTIC NUCLEI.ASTROPHYSICAL JOURNAL,770(1),1. |
| MLA | Wu, Qingwen,et al."A PHYSICAL LINK BETWEEN JET FORMATION AND HOT PLASMA IN ACTIVE GALACTIC NUCLEI".ASTROPHYSICAL JOURNAL 770.1(2013):1. |
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