A STUDY ON THE CHEMICAL PROPERTIES OF BLUE COMPACT DWARF GALAXIES

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 星系中的恒星形成研究团组

	A STUDY ON THE CHEMICAL PROPERTIES OF BLUE COMPACT DWARF GALAXIES
	Zhao, Yinghe1,2,3 ; Gao, Yu1,2 ; Gu, Qiusheng 3,4
刊名	ASTROPHYSICAL JOURNAL
	2013-02-10
卷号	764 期号:1 页码:44-44
关键词	galaxies: abundances galaxies: dwarf galaxies: evolution
ISSN号	0004-637X
通讯作者	Zhao, YH (reprint author), Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China. Email: yhzhao@pmo.ac.cn
英文摘要	In 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.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	LUMINOSITY-METALLICITY RELATIONS ; CAMPANAS IMAGING ATLAS ; STAR-FORMING GALAXIES ; TO-LIGHT RATIOS ; IRREGULAR GALAXIES ; HI-OBSERVATIONS ; STELLAR POPULATION ; VIRGO CLUSTER ; LOCAL GROUP ; INTEGRATED PHOTOMETRY
收录类别	SCI
语种	英语
WOS记录号	WOS:000314335200044
公开日期	2014-01-08
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/9877]
专题	紫金山天文台_星系中的恒星形成研究团组
作者单位	1.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
推荐引用方式 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.