Gas structure and dynamics towards bipolar infrared bubble

doi:10.1007/s10509-017-3153-5

	Gas structure and dynamics towards bipolar infrared bubble
	Liu, Xiao-Lan; Yu, Naiping; Xu, Jin-Long; Zhang, Chuan-Peng
刊名	ASTROPHYSICS AND SPACE SCIENCE
	2017-09-01
卷号	362 期号:9
关键词	h Ii Regions Ism: Bubbles Ism: Clouds
DOI	10.1007/s10509-017-3153-5
文献子类	Article
英文摘要	We present multi-wavelength analysis for four bipolar bubbles (G045.386-0.726, G049.998-0.125, G050.489+0.993, and G051.610-0.357) to probe the structure and dynamics of their surrounding gas. The (CO)-C-12 J = 1-0, (CO)-C-13 J = 1-0 and (CO)-O-18 J = 1-0 observations are made with the Purple Mountain Observation (PMO) 13.7 m radio telescope. For the four bipolar bubbles, the bright 8.0 mu m emission shows the bipolar structure. Each bipolar bubble is associated with an H II region. From CO observations we find that G045.386-0.726 is composed of two bubbles with different distances, not a bipolar bubble. Each of G049.998-0.125 and G051.610-0.357 is associated with a filament. The filaments in CO emission divide G049.998-0.125 and G051.610-0.357 into two lobes. We suggest that the exciting stars of both G049.998-0.125 and G051.610-0.357 form in a sheet-like structure clouds. Furthermore, G050.489+0.993 is associated with a clump, which shows a triangle-like shape with a steep integrated intensity gradient towards the two lobes of G050.489+0.993. We suggest that the two lobes of G050.489+0.993 have simultaneously expanded into the clump.
WOS关键词	HII-REGIONS ; SKY SURVEY ; DUST ; EXTINCTION ; EMISSION
WOS研究方向	Astronomy & Astrophysics
语种	英语
WOS记录号	WOS:000409939000029
资助机构	National Natural Science Foundation of China(11363004 ; National Natural Science Foundation of China(11363004 ; 11403042) ; 11403042) ; National Natural Science Foundation of China(11363004 ; National Natural Science Foundation of China(11363004 ; 11403042) ; 11403042)
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/20126]
专题	国家天文台_射电天文研究部
作者单位	Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xiao-Lan,Yu, Naiping,Xu, Jin-Long,et al. Gas structure and dynamics towards bipolar infrared bubble[J]. ASTROPHYSICS AND SPACE SCIENCE,2017,362(9).
APA	Liu, Xiao-Lan,Yu, Naiping,Xu, Jin-Long,&Zhang, Chuan-Peng.(2017).Gas structure and dynamics towards bipolar infrared bubble.ASTROPHYSICS AND SPACE SCIENCE,362(9).
MLA	Liu, Xiao-Lan,et al."Gas structure and dynamics towards bipolar infrared bubble".ASTROPHYSICS AND SPACE SCIENCE 362.9(2017).