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LARGE-SCALE CAVITIES SURROUNDING MICROQUASARS INFERRED FROM EVOLUTION OF THEIR RELATIVISTIC JETS
Hao, JF; Zhang SN(张双南); Zhang, SN
2009
发表期刊ASTROPHYSICAL JOURNAL
卷号702期号:2页码:1648-1661
通讯作者[Hao, J. F. ; Zhang, S. N.] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China ; [Hao, J. F. ; Zhang, S. N.] Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China ; [Zhang, S. N.] Chinese Acad Sci, Key Lab Particle Astrophys, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Zhang, S. N.] Univ Alabama, Dept Phys, Huntsville, AL 35899 USA
摘要The black hole (BH) X-ray transient XTE J1550-564 has undergone a strong outburst in 1998 and two relativistic X-ray jets have been detected years later with the Chandra X-ray observatory; the eastern jet was found previously to have decelerated after its first detection. Here, we report a full analysis of the evolution of the western jet; significant deceleration is also detected in the western side. Our analysis indicates that there is a cavity outside the central source and the jets first traveled with constant velocity and then were slowed down by the interactions between the jets and the interstellar medium. The best-fitted radius of the cavity is similar to 0.31 pc on the eastern side and similar to 0.44 pc on the western side, and the densities also show asymmetry, of similar to 0.034 cm(-3) on the east to similar to 0.12 cm(-3) on the west. The best-fitted magnetic fields on both sides are similar to 0.5 mG. Similar analysis is also applied to another microquasar system, H 1743-322, and a large-scale low-density region is also found. Based on these results and the comparison with other microquasar systems, we suggest a generic scenario for microquasar jets, classifying the observed jets into three main categories, with different jet morphologies (and sizes) corresponding to different scales of vacuous environments surrounding them. We also suggest that either continuous jets or accretion disk winds, or both may be responsible for creating these cavities. Therefore X-ray jets from microquasars provide us with a promising method of probing the environment of accreting BHs.
文章类型Article
关键词accretion, accretion disks black hole physics ISM: bubbles ISM: jets and outflows radiation mechanisms: non-thermal X-rays: binaries
学科领域Astronomy & Astrophysics
DOI10.1088/0004-637X/702/2/1648
研究领域[WOS]Astronomy & Astrophysics
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语种英语
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000269245000068
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239454
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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Hao, JF,Zhang SN,Zhang, SN. LARGE-SCALE CAVITIES SURROUNDING MICROQUASARS INFERRED FROM EVOLUTION OF THEIR RELATIVISTIC JETS[J]. ASTROPHYSICAL JOURNAL,2009,702(2):1648-1661.
APA Hao, JF,张双南,&Zhang, SN.(2009).LARGE-SCALE CAVITIES SURROUNDING MICROQUASARS INFERRED FROM EVOLUTION OF THEIR RELATIVISTIC JETS.ASTROPHYSICAL JOURNAL,702(2),1648-1661.
MLA Hao, JF,et al."LARGE-SCALE CAVITIES SURROUNDING MICROQUASARS INFERRED FROM EVOLUTION OF THEIR RELATIVISTIC JETS".ASTROPHYSICAL JOURNAL 702.2(2009):1648-1661.
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