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CAVITY OF MOLECULAR GAS ASSOCIATED WITH SUPERNOVA REMNANT 3C 397

文献类型:期刊论文

作者Jiang, Bing1; Chen, Yang1,2; Wang, Junzhi1,2; Su, Yang3; Zhou, Xin1; Safi-Harb, Samar4; DeLaney, Tracey5
刊名ASTROPHYSICAL JOURNAL
出版日期2010-04-01
卷号712期号:2页码:1147-1156
关键词ISM: individual objects (3C 397 (G41.1-0.3)) ISM: molecules ISM: supernova remnants
ISSN号0004-637X
英文摘要3C 397 is a radio and X-ray bright Galactic supernova remnant (SNR) with an unusual rectangular morphology. Our CO observation obtained with the Purple Mountain Observatory at Delingha, Qinghai Province, China reveals that the remnant is well confined in a cavity of molecular gas and embedded at the edge of a molecular cloud (MC) at the local standard of rest systemic velocity of similar to 32 km s(-1). The cloud has a column density gradient increasing from southeast to northwest, perpendicular to the Galactic plane, in agreement with the elongation direction of the remnant. This systemic velocity places the cloud and SNR 3C 397 at a kinematic distance of similar to 10.3 kpc. The derived mean molecular density (similar to 10-30 cm(-3)) explains the high volume emission measure of the X-ray emitting gas. A (12)CO line broadening of the similar to 32 km s(-1) component is detected at the westmost boundary of the remnant, which provides direct evidence of the SNR MC interaction and suggests multi-component gas there with dense (similar to 10(4) cm(-3)) molecular clumps. We confirm the previous detection of an MC at similar to 38 km s(-1) to the west and south of the SNR and argue, based on H I self-absorption, that the cloud is located in the foreground of the remnant. A list of Galactic SNRs presently known and suggested to be in physical contact with environmental MCs is appended in this paper.
WOS标题词Science & Technology ; Physical Sciences
学科主题Astronomy & Astrophysics
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
关键词[WOS]GAMMA-RAY EMISSION ; MHZ MASER EMISSION ; PULSAR-WIND NEBULA ; SNR PUPPIS-A ; X-RAY ; GALACTIC-CENTER ; IC 443 ; CASSIOPEIA-A ; MAGIC TELESCOPE ; CO OBSERVATIONS
收录类别SCI
语种英语
WOS记录号WOS:000275594600032
公开日期2011-11-23
源URL[http://159.226.72.40/handle/332002/1029]  
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.Nanjing Univ, Key Lab Modern Astron & Astrophys, Nanjing 210093, Peoples R China
3.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
4.Univ Manitoba, Dept Phys & Astron, Winnipeg, MB R3T 2N2, Canada
5.MIT, Kavli Inst Astrophys & Space Res, Cambridge, MA 02139 USA
推荐引用方式
GB/T 7714
Jiang, Bing,Chen, Yang,Wang, Junzhi,et al. CAVITY OF MOLECULAR GAS ASSOCIATED WITH SUPERNOVA REMNANT 3C 397[J]. ASTROPHYSICAL JOURNAL,2010,712(2):1147-1156.
APA Jiang, Bing.,Chen, Yang.,Wang, Junzhi.,Su, Yang.,Zhou, Xin.,...&DeLaney, Tracey.(2010).CAVITY OF MOLECULAR GAS ASSOCIATED WITH SUPERNOVA REMNANT 3C 397.ASTROPHYSICAL JOURNAL,712(2),1147-1156.
MLA Jiang, Bing,et al."CAVITY OF MOLECULAR GAS ASSOCIATED WITH SUPERNOVA REMNANT 3C 397".ASTROPHYSICAL JOURNAL 712.2(2010):1147-1156.

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来源:紫金山天文台

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