Resolved, expanding jets in the Galactic black hole candidate XTE J1908+094
文献类型：期刊论文
| 作者 | Rushton, A. P.4,13; Miller-Jones, J. C. A.14; Curran, P. A.14; Sivakoff, G. R.15; Rupen, M. P.16; Paragi, Z.17; Spencer, R. E.18; Yang, J.3,19; Altamirano, D.13; Belloni, T.2 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2017-07-01 |
| 卷号 | 468期号:3页码:2788-2802 |
| ISSN号 | 0035-8711 |
| 关键词 | Stars: Individual: Xte j1908+094 Ism: Jets And Outflows Radio Continuum: Stars X-rays: Binaries |
| DOI | 10.1093/mnras/stx526 |
| 英文摘要 | Black hole X-ray binaries undergo occasional outbursts caused by changing inner accretion flows. Here we report high angular resolution radio observations of the 2013 outburst of the black hole candidate X-ray binary system XTE J1908+094, using data from the Very Long Baseline Array and European VLBI Network. We show that following a hard-to-soft state transition, we detect moving jet knots that appear asymmetric in morphology and brightness, and expand to become laterally resolved as they move away from the core, along an axis aligned approximately -11. east of north. We initially see only the southern component, whose evolution gives rise to a 15-mJy radio flare and generates the observed radio polarization. This fades and becomes resolved out after 4 days, after which a second component appears to the north, moving in the opposite direction. From the timing of the appearance of the knots relative to the X-ray state transition, a 90. swing of the inferred magnetic field orientation, the asymmetric appearance of the knots, their complex and evolving morphology, and their low speeds, we interpret the knots as working surfaces where the jets impact the surrounding medium. This would imply a substantially denser environment surrounding XTE J1908+094 than has been inferred to exist around the microquasar sources GRS 1915+105 and GRO J1655-40. |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:000402808700024 |
| 源URL | [http://119.78.226.72/handle/331011/32607]  |
| 专题 | 中国科学院上海天文台 |
| 通讯作者 | Rushton, A. P. |
| 作者单位 | 1.Univ Space Res Assoc, 7178 Columbia Gateway Dr, Columbia, MD 21046 USA 2.Ist Nazl Astrofis, Osservatorio Astron Brera, Via E Bianchi 46, I-23807 Merate, Italy 3.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 4.Univ Oxford, Dept Phys, Astrophys, Keble Rd, Oxford OX1 3RH, England 5.Wheaton Coll, Dept Phys & Astron, Norton, MA 02766 USA 6.European Space Astron Ctr, E-28692 Madrid, Spain 7.Univ Barcelona, Dept Quantum Phys & Astrophys, E-08028 Barcelona, Spain 8.Univ Barcelona, Inst Cosmos Sci, E-08028 Barcelona, Spain 9.New York Univ Abu Dhabi, POB 129188, Abu Dhabi, U Arab Emirates 10.Univ Amsterdam, Anton Pannekoek Inst Astron, POB 94249, NL-1090 GE Amsterdam, Netherlands |
| 推荐引用方式 GB/T 7714 | Rushton, A. P.,Miller-Jones, J. C. A.,Curran, P. A.,et al. Resolved, expanding jets in the Galactic black hole candidate XTE J1908+094[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,468(3):2788-2802. |
| APA | Rushton, A. P..,Miller-Jones, J. C. A..,Curran, P. A..,Sivakoff, G. R..,Rupen, M. P..,...&Tudose, V..(2017).Resolved, expanding jets in the Galactic black hole candidate XTE J1908+094.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,468(3),2788-2802. |
| MLA | Rushton, A. P.,et al."Resolved, expanding jets in the Galactic black hole candidate XTE J1908+094".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 468.3(2017):2788-2802. |
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来源：上海天文台
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