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	Evolution of relativistic jets from XTE J1550-564 and the environment of microquasars
	Zhang, Shuang Nan ; Hao, JingFang
	2010-05-06 ; 2010-05-06
会议名称	OBSERVATIONAL EVIDENCE FOR BLACK HOLES IN THE UNIVERSE ; 2nd Kolkata Conference on Observational Evidence for Black Holes in the Universe/Satellite Meeting on Black Holes, Neutron Stars, and Gamma-Ray Bursts ; Kolkata, INDIA ; Web of Science
关键词	microquasars jets outflows black hole accretion XTE J1550-564 X-ray ISM GRB afterglow theory X-RAY JETS BLACK-HOLE LARGE-SCALE RADIO JETS EMISSION BINARY GALAXY MODEL XTE-J1550-564 H1743-322 Physics, Multidisciplinary
中文摘要	Two relativistic X-ray jets have been detected with the Chandra X-ray observatory in the black hole X-ray transient XTE J1550-564. We report a full analysis of the evolution of the two jets with a gamma-ray burst external shock model. A plausible scenario suggests a cavity outside the central source and the jets first travelled with constant velocity and then are slowed down by the interactions between the jets and the interstellar medium (ISM). The best fitted radius of the cavity is similar to 0.36 pc on the eastern side and similar to 0.46 pc on the western side, and the densities also show asymmetry, of similar to 0.015 cm(-3) on the east to similar to 0.21 cm(-3) on the west. Large scale low density region is also found in another microquasar system, H 1743-322. These results are consistent with previous suggestions that the environment of microquasars should be rather vacuous, compared to the normal Galactic environment A generic scenario for microquasar jets is proposed, classifying the observed jets into three main categories, with different jet morphologies (and sizes) corresponding to different scales of vacuous environments surrounding them.
会议录出版者	AMER INST PHYSICS ; MELVILLE ; 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/6859]
专题	清华大学
推荐引用方式 GB/T 7714	Zhang, Shuang Nan,Hao, JingFang. Evolution of relativistic jets from XTE J1550-564 and the environment of microquasars[C]. 见:OBSERVATIONAL EVIDENCE FOR BLACK HOLES IN THE UNIVERSE, 2nd Kolkata Conference on Observational Evidence for Black Holes in the Universe/Satellite Meeting on Black Holes, Neutron Stars, and Gamma-Ray Bursts, Kolkata, INDIA, Web of Science.

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