PMO OpenIR  > 分子云与恒星形成研究团组
NEAR-INFRARED IMAGING OF THE STAR-FORMING REGIONS SH2-157 AND SH2-152
Chen, Yafeng1; Yao, Yongqiang2; Yang, Ji1; Zeng, Qin1; Sato, Shuji3
2009-03-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume693Issue:1Pages:430-446
AbstractNear-infrared JHK' and H(2) nu = 1-0 S (1) imaging observations of the star-forming regions Sh2-157 and Sh2-152 are presented. The data reveal a cluster of young stars associated with H(2) line emission in each region. Additionally, many IR point sources are found in the dense core of each molecular cloud. Most of these sources exhibit infrared color excesses typical of T Tauri stars, Herbig Ae/Be stars, and protostars. Several display the characteristics of massive stars. We calculate histograms of the K'-magnitude and [H - K'] color for all sources, as well as two-color and color-magnitude diagrams. The stellar populations inside and outside the clusters are similar, suggesting that these systems are rather evolved. Shock-driven H(2) emission knots are also detected, which may be related to evident subclusters in an earlier evolutionary stage.
KeywordIsm: Individual (S152, S157) Ism: Jets And Outflows Ism: Lines And bAnds Stars: Formation
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1088/0004-637X/693/1/430
WOS KeywordH-II REGIONS ; YOUNG STELLAR CLUSTERS ; STATISTICAL PROPERTIES ; MOLECULAR CLOUDS ; IRAS SOURCES ; DENSE CORES ; H2O MASERS ; HOT STARS ; EMISSION ; CS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000263903300039
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/1445
Collection分子云与恒星形成研究团组
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Purple Mt Observ, Nanjing 210008, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
3.Nagoya Univ, Dept Astrophys, Nagoya, Aichi 4640062, Japan
Recommended Citation
GB/T 7714
Chen, Yafeng,Yao, Yongqiang,Yang, Ji,et al. NEAR-INFRARED IMAGING OF THE STAR-FORMING REGIONS SH2-157 AND SH2-152[J]. ASTROPHYSICAL JOURNAL,2009,693(1):430-446.
APA Chen, Yafeng,Yao, Yongqiang,Yang, Ji,Zeng, Qin,&Sato, Shuji.(2009).NEAR-INFRARED IMAGING OF THE STAR-FORMING REGIONS SH2-157 AND SH2-152.ASTROPHYSICAL JOURNAL,693(1),430-446.
MLA Chen, Yafeng,et al."NEAR-INFRARED IMAGING OF THE STAR-FORMING REGIONS SH2-157 AND SH2-152".ASTROPHYSICAL JOURNAL 693.1(2009):430-446.
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