Accretion states of the galactic microquasar grs1758-258
文献类型：期刊论文
| 作者 | Soria, Roberto1,2; Broderick, Jess W.3; Hao, JingFang4,5; Hannikainen, Diana C.6; Mehdipour, Missagh1; Pottschmidt, Katja7,8,9; Zhang, Shuang-Nan10 |
| 刊名 | Monthly notices of the royal astronomical society
 |
| 出版日期 | 2011-07-01 |
| 卷号 | 415期号:1页码:410-424 |
| 关键词 | Accretion, accretion discs Black hole physics Radio continuum: general X-rays: binaries X-rays: individual: grs 1758-258 |
| ISSN号 | 0035-8711 |
| DOI | 10.1111/j.1365-2966.2011.18714.x |
| 通讯作者 | Soria, roberto(roberto.soria@mssl.ucl.ac.uk) |
| 英文摘要 | We present the results of a radio and x-ray study of the galactic microquasar grs 1758-258, using unpublished archival data and new observations. we focus in particular on the 2000-2002 state transitions, and on its more quiet behaviour in 2008-2009. our spectral and timing analysis of the xmm-newton data shows that the source was in the canonical intermediate, soft and hard states in 2000 september 19, 2001 march 22 and 2002 september 28, respectively. we estimate the disc size, luminosity and temperature, which are consistent with a black hole mass similar to 10m(circle dot). there is much overlap between the range of total x-ray luminosities (on average similar to 0.02l(edd)) in the hard and soft states, and probably between the corresponding mass accretion rates; in fact, the hard state is often more luminous. the extended radio lobes seen in 1992 and 1997 are still present in 2008-2009. the 5-ghz radio core flux density has shown variability between similar to 0.1 and 0.5 mjy over the last two decades. this firmly places grs 1758-258 in the radio-quiet sequence of galactic black holes, in the radio/x-ray plane. we note that this dichotomy is similar to the dichotomy between the radio/x-ray sequences of seyfert and radio galaxies. we propose that the different radio efficiency of the two sequences is due to relativistic electron/positron jets in radio-loud black holes, and subrelativistic, thermally dominated outflows in radio-quiet sources. |
| WOS关键词 | BLACK-HOLE BINARIES ; X-RAY SOURCE ; ADVECTION-DOMINATED ACCRETION ; MAGNETICALLY DRIVEN ACCRETION ; SOURCE GRS 1758-258 ; XTE J1550-564 ; RELATIVISTIC JETS ; RADIO LOUDNESS ; DISK ACCRETION ; LARGE-SCALE |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000293755000052 |
| 出版者 | WILEY-BLACKWELL |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176226 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Soria, Roberto |
| 作者单位 | 1.Univ Coll London, Mullard Space Sci Lab, Surrey RH5 6NT, England 2.Curtin Univ, Curtin Inst Radio Astron, Perth, WA 6845, Australia 3.Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England 4.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China 5.Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China 6.Aalto Univ Metsahovi Radio Observ, FI-02540 Kylmala, Finland 7.NASA, Goddard Space Flight Ctr, Astrophys Sci Div, Greenbelt, MD 20771 USA 8.CRESST, Greenbelt, MD 20771 USA 9.Univ Maryland, Ctr Space Sci & Technol, Baltimore, MD 21250 USA 10.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Soria, Roberto,Broderick, Jess W.,Hao, JingFang,et al. Accretion states of the galactic microquasar grs1758-258[J]. Monthly notices of the royal astronomical society,2011,415(1):410-424. |
| APA | Soria, Roberto.,Broderick, Jess W..,Hao, JingFang.,Hannikainen, Diana C..,Mehdipour, Missagh.,...&Zhang, Shuang-Nan.(2011).Accretion states of the galactic microquasar grs1758-258.Monthly notices of the royal astronomical society,415(1),410-424. |
| MLA | Soria, Roberto,et al."Accretion states of the galactic microquasar grs1758-258".Monthly notices of the royal astronomical society 415.1(2011):410-424. |
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