中国科学院紫金山天文台机构知识库
Advanced  
PMO OpenIR  > 太阳活动的多波段观测研究团组  > 期刊论文
题名: Water abundance in four of the brightest water sources in the southern sky
作者: Wang, Bing-Ru1; Qian, Lei1; Li, Di1, 2; Pan, Zhi-Chen1
刊名: RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期: 2016-03-01
卷号: 16, 期号:3
关键词: ISM: abundances ; (ISM:) HII regions ; ISM: molecules ; stars: formation
DOI: 10.1088/1674-4527/16/3/039
文章类型: Article
英文摘要: We estimated the ortho-H2O abundances of G267.9-1.1, G268.4-0.9, G333.1-0.4 and G336.5-1.5. four of the brightest ortho-H2O sources in the southern sky observed by the Submillimeter Wave Astronomy Satellite (ortho-H2O 1(10) - 1(01) line, 556.936 GHz). The typical molecular clumps in our sample have H-2 column densities of 10(22) to 10(23) cm(2) and onlio-H2O abundances of 10(-10). Compared with previous studies, the ortho-H2O abundances are at a low level, which can be caused by the low temperatures of these clumps. To estimate the ortho-H2O abundances, we used the CS J = 2 -> 1 line (97.98095 GHz) and CS J = 5 -> 4 (244.93556 GHz) line observed by the Swedish-ESO 15 m Submillimeter Telescope (SEST) to calculate the temperatures of the clumps and the 350 mu m dust continuum observed by the Caltech Submillimeter Observatory (CSO) telescope to estimate the H-2 column densities. The observations of N2H+ (J = 1 -> 0) for these clumps were also acquired by SEST and the corresponding abundances were estimated. The N2H+ abundance in each clump shows a common decreasing trend toward the center and a typical abundance range from 10(-11) to 10(-9).
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: WAVE-ASTRONOMY-SATELLITE ; H-II REGIONS ; MASSIVE STAR-FORMATION ; MOLECULAR CLOUD CORES ; COLLAPSING PRESTELLAR CORES ; FORMING REGIONS ; RIMMED CLOUDS ; ROTATIONAL-EXCITATION ; LINE EMISSION ; HII-REGIONS
收录类别: SCI
项目资助者: National Basic Research Program of China (973 program)(2012CB821800 ; National Natural Science Foundation of China(11373038) ; Chinese Academy of Sciences(XDB09000000) ; 2015CB857100)
语种: 英语
WOS记录号: WOS:000371883400003
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/16167
Appears in Collections:太阳活动的多波段观测研究团组_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Wang, Bing-Ru]'s Articles
[Qian, Lei]'s Articles
[Li, Di]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Wang, Bing-Ru]‘s Articles
[Qian, Lei]‘s Articles
[Li, Di]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院紫金山天文台 - Feedback
Powered by CSpace