中国科学院紫金山天文台机构知识库
Advanced  
PMO OpenIR  > 分子云与恒星形成研究团组  > 期刊论文
题名: COEVAL INTERMEDIATE-MASS STAR FORMATION IN N4W
作者: Chen, Zhiwei1, 2; Zhang, Shaobo1, 2; Zhang, Miaomiao1, 2; Jiang ZhiBo(江治波)1, 2; Tamura, Motohide3, 4; Kwon, Jungmi3, 4
刊名: ASTROPHYSICAL JOURNAL
出版日期: 2016-05-10
卷号: 822, 期号:2
关键词: infrared: stars ; ISM: jets and outflows ; stars: formation ; submillimeter: stars
DOI: 10.3847/0004-637X/822/2/114
文章类型: Article
英文摘要: Protostars are mostly found in star-forming regions, where the natal molecular gas still remains. At about 5' west of the molecular bubble N4, N4W is identified as a star-forming clump hosting three Class II (IRS 1-3), and one Class I (IRS 4) young stellar objects (YSOs), as well as a submillimeter source SMM1. The near-IR polarization imaging data of N4W reveal two infrared reflection nebulae close to each other, which are in favor of the outflows of IRS 1 and IRS 2. The bipolar mid-IR emission centered on IRS 4 and the arc-like molecular gas shell are lying on the same axis, indicating a bipolar molecular outflow from IRS 4. There are two dust temperature distributions in N4W. The warmer one is widely distributed and has a temperature of T-d greater than or similar to 28 K, with the colder one being from the embedded compact submillimeter source SMM1. N4W's mass is estimated to be similar to 2.5 x 10(3) M-circle dot, and the mass of SMM1 is similar to 5.5 x 10(2) M-circle dot at T-d = 15 K, calculated from the CO 1 - 0 emission and 870 mu m dust continuum emission, respectively. Based on the estimates of the bolometric luminosity of IRS 1-4, these four sources are intermediate-mass YSOs at least. SMM1 is gravitationally bound, and is capable of forming intermediate-mass stars or even possibly massive stars. The co-existence of the IR bright YSOs and the submillimeter source represents potential sequential star formation processes separated by similar to 0.5 Myr in N4W. This small age spread implies that the intermediate-mass star formation processes happening in N4W are almost coeval.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: YOUNG STELLAR OBJECTS ; GALACTIC PLANE ; FORMING REGION ; SOURCE CATALOG ; MILKY-WAY ; MU-M ; SPITZER ; ATLASGAL ; CLUSTER ; POLARIZATION
收录类别: SCI
项目资助者: Strategic Priority Research Program "The Emergence of Cosmological Structure" of the Chinese Academy of Sciences(XDB09000000) ; Millimeter Wave Radio Astronomy Database ; Key Laboratory for Radio Astronomy, CAS ; NSFC(11233007)
语种: 英语
WOS记录号: WOS:000377204900057
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/16233
Appears in Collections:分子云与恒星形成研究团组_期刊论文

Files in This Item:
File Name/ File Size Content Type Version Access License
2016139.pdf(1383KB)----限制开放View 联系获取全文

作者单位: 1.Chinese Acad Sci, Purple Mt Observ, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Key Lab Radio Astron, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
3.Univ Tokyo, Dept Astron, Grad Sch Sci, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan
4.Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Chen, Zhiwei]'s Articles
[Zhang, Shaobo]'s Articles
[Zhang, Miaomiao]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Chen, Zhiwei]‘s Articles
[Zhang, Shaobo]‘s Articles
[Zhang, Miaomiao]‘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
文件名: 2016139.pdf
格式: Adobe PDF
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