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A STUDY ON THE CHEMICAL PROPERTIES OF BLUE COMPACT DWARF GALAXIES
Zhao, Yinghe1,2,3; Gao, Yu1,2; Gu, Qiusheng3,4
2013-02-10
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume764Issue:1Pages:44-44
Corresponding AuthorZhao, YH (reprint author), Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China. Email: yhzhao@pmo.ac.cn
AbstractIn this paper, we report our studies on the gaseous and chemical properties of a relatively large sample ( 53 members) of blue compact dwarf galaxies (BCDs). The results of correlations among the oxygen abundance, stellar mass, gas mass, baryonic mass, and gas fraction are present both for E-and I-type BCDs, which are classified according to Loose & Thuan and show elliptical and irregular outer haloes, respectively. These correlations of I-type BCDs show slopes similar to those of E-type ones. However, in general, E-type BCDs are more gas-poor and metal-rich than I-type ones at a given baryonic mass. Based on these results, we suggest that E-type BCDs, at least a part of them, and I-type ones might be likely at different evolutionary phases and/or having different progenitors. Our investigation of the correlation between oxygen abundance and gas fraction shows that BCDs appear to have not evolved as isolated systems, but to have experienced some gas flows and/or mergers.
KeywordGalaxies: Abundances Galaxies: Dwarf Galaxies: Evolution
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1088/0004-637X/764/1/44
WOS KeywordLUMINOSITY-METALLICITY RELATIONS ; CAMPANAS IMAGING ATLAS ; STAR-FORMING GALAXIES ; TO-LIGHT RATIOS ; IRREGULAR GALAXIES ; HI-OBSERVATIONS ; STELLAR POPULATION ; VIRGO CLUSTER ; LOCAL GROUP ; INTEGRATED PHOTOMETRY
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000314335200044
Citation statistics
Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/9877
Collection星系中的恒星形成研究团组
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China
3.Nanjing Univ, Key Lab Modern Astron & Astrophys, Minist Educ, Nanjing 210093, Jiangsu, Peoples R China
4.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Yinghe,Gao, Yu,Gu, Qiusheng. A STUDY ON THE CHEMICAL PROPERTIES OF BLUE COMPACT DWARF GALAXIES[J]. ASTROPHYSICAL JOURNAL,2013,764(1):44-44.
APA Zhao, Yinghe,Gao, Yu,&Gu, Qiusheng.(2013).A STUDY ON THE CHEMICAL PROPERTIES OF BLUE COMPACT DWARF GALAXIES.ASTROPHYSICAL JOURNAL,764(1),44-44.
MLA Zhao, Yinghe,et al."A STUDY ON THE CHEMICAL PROPERTIES OF BLUE COMPACT DWARF GALAXIES".ASTROPHYSICAL JOURNAL 764.1(2013):44-44.
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