DISCOVERY OF MOLECULAR SHELLS ASSOCIATED WITH SUPERNOVA REMNANTS. I. KESTEVEN 69

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 分子云与恒星形成研究团组

	DISCOVERY OF MOLECULAR SHELLS ASSOCIATED WITH SUPERNOVA REMNANTS. I. KESTEVEN 69
	Zhou, Xin1 ; Chen, Yang 1; Su, Yang 1,2; Yang, Ji2,3
刊名	ASTROPHYSICAL JOURNAL
	2009-01-20
卷号	691 期号:1 页码:516-524
关键词	ISM: individual (Kes 69, G21.8-0.6) ISM: molecules supernova remnants
ISSN号	0004-637X
英文摘要	Supernova remnant (SNR) Kes 69 is morphologically characterized by brightened radio, infrared, and X-ray emission on the southeastern rim, with the 1720 MHz OH masers detected in the northeastern and southeastern regions at various local standard rest (LSR) velocities. We have performed a millimeter observation in CO and HCO(+) lines toward Kes 69. From the northeastern compact maser region, (12)CO and (13)CO emissions' peaks around 65 km s(-1) and 85 km s(-1), which are consistent with the masers' LSR velocities, are detected. In the southeast, a molecular ((12)CO) arc is revealed at 77-86 km s(-1), well coincident with the partial SNR shell detected in the radio continuum and mid-infrared observations. An 85 km s(-1) HCO(+) emission is found to arise from a radio peak on the shell. Both the molecular arc and the HCO(+) emission at similar to 85 km s(-1) seem to be consistent with the presence of extended OH masers along the southeastern boundary of Kes 69. The morphology correspondence between the CO arc and other band emission of the Kes 69 shell provides strong evidence for the association between SNR Kes 69 and the similar to 85 km s(-1) component of molecular gas. The multiwavelength emissions along the southeastern shell can be accounted for by the impact of the SNR shock on a dense, clumpy patch of molecular gas. This pre-existing gas is likely to be a part of the cooled debris of the material swept up by the progenitor's stellar wind. The association of SNR Kes 69 with the molecular cloud at the systemic velocity of similar to 85 km s(-1) enables us to place the SNR at a kinematic distance of 5.2 kpc.
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]	MHZ MASER EMISSION ; SPITZER-SPACE-TELESCOPE ; ARRAY CAMERA IRAC ; X-RAY ; INTERSTELLAR BUBBLES ; SKY SURVEY ; CO SURVEY ; CLOUDS ; RADIO ; SPECTROSCOPY
收录类别	SCI
语种	英语
WOS记录号	WOS:000263196600044
公开日期	2011-12-08
内容类型	期刊论文
源URL	[http://159.226.72.40/handle/332002/1453]
专题	紫金山天文台_分子云与恒星形成研究团组
作者单位	1.Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China 2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Xin,Chen, Yang,Su, Yang,et al. DISCOVERY OF MOLECULAR SHELLS ASSOCIATED WITH SUPERNOVA REMNANTS. I. KESTEVEN 69[J]. ASTROPHYSICAL JOURNAL,2009,691(1):516-524.
APA	Zhou, Xin,Chen, Yang,Su, Yang,&Yang, Ji.(2009).DISCOVERY OF MOLECULAR SHELLS ASSOCIATED WITH SUPERNOVA REMNANTS. I. KESTEVEN 69.ASTROPHYSICAL JOURNAL,691(1),516-524.
MLA	Zhou, Xin,et al."DISCOVERY OF MOLECULAR SHELLS ASSOCIATED WITH SUPERNOVA REMNANTS. I. KESTEVEN 69".ASTROPHYSICAL JOURNAL 691.1(2009):516-524.