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Jet-dominated quiescent state in black hole X-ray binaries: the cases of A0620-00 and XTE J1118+480
Yang QiXiang1
2016
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
ISSN1674-4527
Volume16Issue:4
AbstractThe radiative mechanism of black hole X-ray transients (BHXTs) in their quiescent states (defined as the 2-10 keV X-ray luminosity less than or similar to 10(34) erg s(-1)) remains unclear. In this work, we investigate the quasi-simultaneous quiescent state spectrum (including radio, infrared, optical, ultraviolet and X-ray) of two BHXTs, A0620-00 and XTE J1118+480. We find that these two sources can be well described by a coupled accretion-jet model. More specifically, most of the emission (radio up to infrared, and the X-ray waveband) comes from the collimated relativistic jet. Emission from hot accretion flow is totally insignificant, and it can only be observed in mid-infrared (the synchrotron peak). Emission from the outer cold disk is only evident in the UV band. These results are consistent with our previous investigation on the quiescent state of V404 Cyg and confirm that the quiescent state is jet-dominated.
KeywordHOT ACCRETION FLOWS ACTIVE GALACTIC NUCLEI SPECTRAL ENERGY-DISTRIBUTION NUMERICAL-SIMULATION ALFVENIC TURBULENCE TRANSIENT A0620-00 FUNDAMENTAL PLANE NEARBY GALAXIES LOW/HARD STATE V404 CYGNI accretion, accretion disks black hole physics X-rays: binaries stars: jets stars: individual (A0620-00, XTE J1118+480)
Language英语
Funding Project[National Basic Research Program of China (973 Program)] ; [National Natural Science Foundation of China] ; [Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/65238
Collection中国科学院国家天文台
Affiliation1.中国科学院国家天文台
2.中国科学院大学
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Yang QiXiang. Jet-dominated quiescent state in black hole X-ray binaries: the cases of A0620-00 and XTE J1118+480[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2016,16(4).
APA Yang QiXiang.(2016).Jet-dominated quiescent state in black hole X-ray binaries: the cases of A0620-00 and XTE J1118+480.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,16(4).
MLA Yang QiXiang."Jet-dominated quiescent state in black hole X-ray binaries: the cases of A0620-00 and XTE J1118+480".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 16.4(2016).
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