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Very long baseline interferometry detection of the Galactic black hole binary candidate MAXI J1836-194
Yang, Jun1; Xu, Yonghua2,3; Li, Zhixuan2,3; Paragi, Zsolt1; Campbell, Robert M.1; Gurvits, Leonid I.1,4; Shen, Zhiqiang5,6; Hong, Xiaoyu5,6; Xia, Bo5,6; Shu, Fengchun5,6
2012-10-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume426Issue:1Pages:L66-L70
AbstractThe X-ray transient MAXI J1836-194 is a newly identified Galactic black hole binary candidate. As most X-ray transients, it was discovered at the beginning of an X-ray outburst. After the initial canonical X-ray hard state, the outburst evolved into a hard intermediate state and then went back to the hard state. The existing RATAN-600 radio monitoring observations revealed that it was variable on a time-scale of days and had a flat or inverted spectrum, consistent with optically thick synchrotron emission, possibly from a self-absorbed jet in the vicinity of the central compact object. We observed the transient in the hard state near the end of the X-ray outburst with the European very long baseline interferometry (VLBI) Network (EVN) at 5 GHz and the Chinese VLBI Network (CVN) at 2.3 and 8.3 GHz. The 8.3-GHz observations were carried out at a recording rate of 2048 Mbps using the newly developed Chinese VLBI data acquisition system, twice higher than the recording rate used in the other observations. We successfully detected the low-declination source with a high confidence level in both observations. The source was unresolved (=0.5 mas), which is in agreement with an au-scale compact jet.
KeywordStars: Individual: Maxi J1836-194 Radio Continuum: Stars X-rays: Binaries
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1111/j.1745-3933.2012.01327.x
WOS KeywordGRS 1915+105 ; JETS ; OUTBURST ; STATE
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000309455800014
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/15554
Collection暗物质和空间天文实验室
Affiliation1.Joint Inst VLBI Europe, NL-7990 AA Dwingeloo, Netherlands
2.NAOC, Yunnan Astron Observ, Kunming 650011, Peoples R China
3.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Beijing, Peoples R China
4.Delft Univ Technol, Dept Astrodynam & Space Miss, NL-2629 HS Delft, Netherlands
5.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
6.Chinese Acad Sci, Key Lab Radio Astron, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Yang, Jun,Xu, Yonghua,Li, Zhixuan,et al. Very long baseline interferometry detection of the Galactic black hole binary candidate MAXI J1836-194[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2012,426(1):L66-L70.
APA Yang, Jun.,Xu, Yonghua.,Li, Zhixuan.,Paragi, Zsolt.,Campbell, Robert M..,...&Shu, Fengchun.(2012).Very long baseline interferometry detection of the Galactic black hole binary candidate MAXI J1836-194.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,426(1),L66-L70.
MLA Yang, Jun,et al."Very long baseline interferometry detection of the Galactic black hole binary candidate MAXI J1836-194".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 426.1(2012):L66-L70.
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