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Multiwavelength study of nearly face-on low surface brightness disk galaxies
Gao, Dong1,2; Liang, Yan-Chun1; Liu, Shun-Fang1,2; Zhong, Guo-Hu1,2; Chen, Xiao-Yan1,2; Yang, Yan-Bin1,3; Hammer, Francois3; Yang, Guo-Chao1,4; Deng, Li-Cai1; Hu, Jing-Yao1
2010-12-01
发表期刊RESEARCH IN ASTRONOMY AND ASTROPHYSICS
卷号10期号:12页码:1223-1241
摘要We study the ages of a large sample (1802) of nearly face-on disk low surface brightness galaxies (LSBGs) using the evolutionary population synthesis (EPS) model PEGASE with an exponentially decreasing star formation rate to fit their multiwavelength spectral energy distributions (SEDs) from far-ultraviolet (FUV) to near-infrared (NIR) The derived ages of LSBGs are 1-5 Gyr for most of the sample no matter if constant or varying dust extinction is adopted, which are similar to most of the previous studies on smaller samples This means that these LSBGs formed the majority of their stars quite recently However, a small part of the sample (similar to 2%-3%) has larger ages of 5-8 Gyr, meaning their major star forming process may have occurred earlier At the same time, a large sample (5886) of high surface brightness galaxies (HSBGs) are selected and studied using the same method for comparisons The derived ages are 1-5 Gyr for most of the sample (97%) as well These results probably mean that these LSBGs have not much different star formation histories from their HSBGs counterparts However, we should notice that the HSBGs are generally about 0 2 Gyr younger, which could mean that the HSBGs may have undergone more recent star forming activities than the LSBGs
关键词Galaxies Evolution Galaxies Formation Galaxies Photometry Galaxies Spiral Galaxies Statistics Ultraviolet Galaxies
收录类别SCI
语种英语
WOS记录号WOS:000285676800004
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/7817
专题光学天文研究部
作者单位1.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
3.Observ Paris, GEPI, F-92195 Meudon, France
4.Hebei Normal Univ, Dept Phys, Shijiazhuang 050016, Peoples R China
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GB/T 7714
Gao, Dong,Liang, Yan-Chun,Liu, Shun-Fang,et al. Multiwavelength study of nearly face-on low surface brightness disk galaxies[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2010,10(12):1223-1241.
APA Gao, Dong.,Liang, Yan-Chun.,Liu, Shun-Fang.,Zhong, Guo-Hu.,Chen, Xiao-Yan.,...&Hu, Jing-Yao.(2010).Multiwavelength study of nearly face-on low surface brightness disk galaxies.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,10(12),1223-1241.
MLA Gao, Dong,et al."Multiwavelength study of nearly face-on low surface brightness disk galaxies".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 10.12(2010):1223-1241.
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