Very long baseline interferometry detection of the Galactic black hole binary candidate MAXI J1836-194

	Very long baseline interferometry detection of the Galactic black hole binary candidate MAXI J1836-194
	Yang, J 1; Xu YH(徐永华)2,3 ; Li ZX(李志玄)2,3 ; Paragi, Z 1; Campbell, RM 1; Gurvits, LI 1,4; Shen, ZQ 5,6; Hong, XY 5,6; Xia, B 5,6; Shu, FC 5,6
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2012-10
卷号	426 期号:1 页码:L66-L70
关键词	stars: individual: MAXI J1836-194 radio continuum: stars X-rays: binaries
ISSN号	0035-8711
通讯作者	Yang, J (reprint author), Joint Inst VLBI Europe, Postbus 2, NL-7990 AA Dwingeloo, Netherlands.
产权排序	第二完成单位
英文摘要	The 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.
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]	GRS 1915+105 ; JETS ; OUTBURST ; STATE
收录类别	SCI
原文出处	http://mnrasl.oxfordjournals.org/content/426/1/L66
语种	英语
WOS记录号	WOS:000309455800014
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/5624]
专题	云南天文台_射电天文研究组云南天文台_中国科学院天体结构与演化重点实验室
作者单位	1.Joint Institute for VLBI in Europe, Postbus 2, 7990 AA Dwingeloo, the Netherlands 2.Yunnan Astronomical Observatory, NAOC, 650011 Kunming, China 3.Key Laboratory for the Structure and Evolution of Celestial Objects, CAS, China 4.Department of Astrodynamics and Space Missions, Delft University of Technology, 2629 HS Delft, the Netherlands 5.Shanghai Astronomical Observatory, CAS, 200030 Shanghai, China 6.Key Laboratory of Radio Astronomy, CAS, China
推荐引用方式 GB/T 7714	Yang, J,Xu YH,Li ZX,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, J.,Xu YH.,Li ZX.,Paragi, Z.,Campbell, RM.,...&Shu, FC.(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, J,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.