NAOC Open IR  > 射电天文研究部
STAR FORMATION ASSOCIATED WITH THE SUPERNOVA REMNANT IC443
Xu, Jin-Long1,2; Wang, Jun-Jie1,2; Miller, Martin3
2011-02-01
发表期刊ASTROPHYSICAL JOURNAL
卷号727期号:2
摘要We have performed submillimeter and millimeter observations in CO lines toward supernova remnant (SNR) IC443. The CO molecular shell coincides well with the partial shell of the SNR detected in radio continuum observations. Broad emission lines and three 1720 MHz OH masers were detected in the CO molecular shell. The present observations have provided further evidence in support of the interaction between the SNR and the adjoining molecular clouds (MCs). The total mass of the MCs is 9.26 x 10(3) M-circle dot. The integrated CO line intensity ratio (RICO(3-2)/ICO(2-1)) for the whole MC is between 0.79 and 3.40. The average value is 1.58, which is much higher than previous measurements of individual Galactic MCs. Higher line ratios imply that shocks have driven into the MCs. We conclude that high RICO(3-2)/ICO(2-1) is identified as a good signature of the SNR-MC interacting system. Based on the IRAS Point Source Catalog and the Two Micron All Sky Survey near-infrared database, 12 protostellar object and 1666 young stellar object (YSO) candidates (including 154 classical T Tauri stars and 419 Herbig Ae/Be stars) are selected. In the interacting regions, the significant enhancement of the number of protostellar objects and YSOs indicates the presence of some recently formed stars. After comparing the characteristic timescales of star formation with the age of IC443, we conclude that the protostellar objects and YSO candidates are not triggered by IC443. For the age of the stellar winds shell, we have performed our calculation on the basis of a stellar wind shell expansion model. The results and analysis suggest that the formation of these stars may be triggered by the stellar winds of the IC443 progenitor.
关键词Ism: Clouds Ism: Individual Objects (Ic443) Ism: Molecules Ism: Supernova Remnants Stars: Formation
DOI10.1088/0004-637X/727/2/81
收录类别SCI
语种英语
WOS记录号WOS:000286662000020
引用统计
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8090
专题射电天文研究部
作者单位1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.NAOC TU Joint Ctr Astrophys, Lhasa 850000, Peoples R China
3.Univ Cologne, Inst Phys, D-50937 Cologne, Germany
推荐引用方式
GB/T 7714
Xu, Jin-Long,Wang, Jun-Jie,Miller, Martin. STAR FORMATION ASSOCIATED WITH THE SUPERNOVA REMNANT IC443[J]. ASTROPHYSICAL JOURNAL,2011,727(2).
APA Xu, Jin-Long,Wang, Jun-Jie,&Miller, Martin.(2011).STAR FORMATION ASSOCIATED WITH THE SUPERNOVA REMNANT IC443.ASTROPHYSICAL JOURNAL,727(2).
MLA Xu, Jin-Long,et al."STAR FORMATION ASSOCIATED WITH THE SUPERNOVA REMNANT IC443".ASTROPHYSICAL JOURNAL 727.2(2011).
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Xu, Jin-Long]的文章
[Wang, Jun-Jie]的文章
[Miller, Martin]的文章
百度学术
百度学术中相似的文章
[Xu, Jin-Long]的文章
[Wang, Jun-Jie]的文章
[Miller, Martin]的文章
必应学术
必应学术中相似的文章
[Xu, Jin-Long]的文章
[Wang, Jun-Jie]的文章
[Miller, Martin]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。