The large-scale, decelerating X-ray jets from the microquasar XTE J1550-564: Evidence for external shocks caused by the jet-ISM interaction?

	The large-scale, decelerating X-ray jets from the microquasar XTE J1550-564: Evidence for external shocks caused by the jet-ISM interaction?
	Wang, XY ; Dai, ZZ ; Lu, T
刊名	ASTROPHYSICS AND SPACE SCIENCE
	2005
卷号	297 期号:1-4 页码:155-166
关键词	stars : individual (XTE J1550-564) gamma rays : bursts ISM : jets and outflows, radiation mechanisms : non-thermal
英文摘要	Large-scale, decelerating, relativistic X-ray jets from microquasar XTE J1550-564 has been recently discovered with Chandra by Corbel et al. ( 2002). We find that the dynamical evolution of the approaching jet at the late time is consistent with the well-known Sedov evolutionary phase R proportional to t(2/5). A trans-relativistic external shock dynamic model by analogy with the evolution of gamma-ray burst remnants, is shown to be able to fit the proper-motion data of the approaching jet reasonably well. The inferred interstellar medium density around the source is well below the canonical value n(ISM) similar to 1 cm(-3). The rapidly fading X-ray emission can be interpreted as synchrotron radiation from the non-thermal electrons in the adiabatically expanding ejecta. These electrons were accelerated by the reverse shock ( moving back into the ejecta) which becomes important when the inertia of the swept external matter leads to an appreciable slowing down of the original ejecta.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	BURST AFTERGLOWS ; OPTICAL FLASH ; 433 SYSTEM ; EMISSION ; DYNAMICS ; RADIO ; MODEL ; PARAMETERS ; GALAXY
收录类别	ISTP ; SCI
语种	英语
WOS记录号	WOS:000228545100017
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/10955]
专题	紫金山天文台_院士文集_陆埮
作者单位	1.Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China 2.Chinese Acad Sci, Purple Mt Observ, Nanjing, Peoples R China
推荐引用方式 GB/T 7714	Wang, XY,Dai, ZZ,Lu, T. The large-scale, decelerating X-ray jets from the microquasar XTE J1550-564: Evidence for external shocks caused by the jet-ISM interaction?[J]. ASTROPHYSICS AND SPACE SCIENCE,2005,297(1-4):155-166.
APA	Wang, XY,Dai, ZZ,&Lu, T.(2005).The large-scale, decelerating X-ray jets from the microquasar XTE J1550-564: Evidence for external shocks caused by the jet-ISM interaction?.ASTROPHYSICS AND SPACE SCIENCE,297(1-4),155-166.
MLA	Wang, XY,et al."The large-scale, decelerating X-ray jets from the microquasar XTE J1550-564: Evidence for external shocks caused by the jet-ISM interaction?".ASTROPHYSICS AND SPACE SCIENCE 297.1-4(2005):155-166.