The structure of molecular cloud W51 and dense cores

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 星系中的恒星形成研究团组

	The structure of molecular cloud W51 and dense cores
	Ma, HJ; Pei, CC; Zeng, Q
刊名	SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY
	2005-04-01
卷号	48 期号:2 页码:168-177
关键词	molecular core continuum source star formation
ISSN号	1672-1799
英文摘要	We present a large scale map of about 15' X 15' of CO(J=1-0) toward W51 giant molecular cloud (GMC), which covers the most active star-forming region of W51 GMC, and an interferometry HCO+(J=1-0) map of a high spatial resolution (i.e. 8".7X6".1) with a field of view (2'X2') centered at W51IRS1. A structure model of W51GMC is obtained according to the results of the observations and analyses. The observations demonstrate that some small molecular cores generated by the collision between the W51GMC and the 60-73 km(.)s(-1) foreground cloud are collapsing toward their own centers. In addition, 16 new molecular cores are discovered from the HCO+(J=1-0) map.
学科主题	Physics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
关键词[WOS]	COLLAPSE ; REGION ; CO
收录类别	SCI
语种	英语
WOS记录号	WOS:000229230500005
公开日期	2012-03-07
内容类型	期刊论文
源URL	[http://159.226.72.40/handle/332002/4170]
专题	紫金山天文台_星系中的恒星形成研究团组
作者单位	Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Ma, HJ,Pei, CC,Zeng, Q. The structure of molecular cloud W51 and dense cores[J]. SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,2005,48(2):168-177.
APA	Ma, HJ,Pei, CC,&Zeng, Q.(2005).The structure of molecular cloud W51 and dense cores.SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,48(2),168-177.
MLA	Ma, HJ,et al."The structure of molecular cloud W51 and dense cores".SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY 48.2(2005):168-177.