The Dynamics Of Galactic Globular Cluster

CORC > 国家授时中心 > 中国科学院国家授时中心 > 守时理论与方法研究室

	The Dynamics Of Galactic Globular Cluster
	Ding, Chen
	2008
会议名称	252nd Symposium of the International-Astronomical-Union
会议日期	APR 06-11, 2008
会议地点	Sanya, PEOPLES R CHINA
英文摘要	We have used the Hubble Space Telescope (HST) to measure proper motion of the globular cluster NGC 6656 (M22) with respect to the background bulge stars and its internal velocity dispersion profile. With the space velocity of (Pi, Theta, W) = (184 +/- 3, 209 +/- 1.4, 132 +/- 15) km s(-1), we also calculate the orbit of the cluster. The central velocity dispersion in both components of the proper motion of cluster stars is 16.99 km s(-1). We derive the mass-to-ration (M/L)similar to 1.7 which is relatively higher than the past works.
收录类别	CPCI
产权排序	1
会议主办者	Int Astron Union, Natl Nat Sci Fdn China, Chinese Acad Sci, Natl Astron Observatories
会议录	ART OF MODELLING STARS IN THE 21ST CENTURY
语种	英语
ISSN号	1743-9213
ISBN号	978-0-521-88983-4
内容类型	会议论文
源URL	[http://210.72.145.45/handle/361003/5298]
专题	国家授时中心_守时理论与方法研究室
推荐引用方式 GB/T 7714	Ding, Chen. The Dynamics Of Galactic Globular Cluster[C]. 见:252nd Symposium of the International-Astronomical-Union. Sanya, PEOPLES R CHINA. APR 06-11, 2008.