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Star formation and the growth of stellar mass
文献类型:期刊论文
作者 | Bell, Eric F.; Zheng, Xian Zhong; Papovich, Casey; Borch, Andrea |
刊名 | ASTROPHYSICAL JOURNAL
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出版日期 | 2007-07-10 |
卷号 | 663期号:2页码:834-843 |
关键词 | galaxies : evolution galaxies : general galaxies : stellar content infrared : galaxies |
ISSN号 | 0004-637X |
英文摘要 | Recent observations have demonstrated a significant growth in the integrated stellar mass of the red sequence since z = 1, dominated by a steadily increasing number of galaxies with stellar masses M-* < 10(11) M-circle dot. In this paper, we use the COMBO- 17 photometric redshift survey in conjunction with deep Spitzer 24 mu m data to explore the relationship between star formation and the growth of stellar mass. We calculate star formation rate functions in four different redshift slices, also splitting them into contributions from the red sequence and blue cloud for the first time. We find that the growth of stellar mass since z 1 is consistent with the integrated star formation rate. Yet, most of the stars formed are in blue cloud galaxies. If the stellar mass already in, and formed in, z < 1 blue cloud galaxies were to stay in the blue cloud, the total stellar mass in blue galaxies would be dramatically overproduced. We explore the expected evolution of stellar mass functions, finding that in this picture the number of massive M-*> 3 X 10(10) M (circle dot) blue galaxies would also be overproduced; i. e., most of the new stars formed in blue cloud galaxies are in the massive galaxies. We explore a simple truncation scenario in which these `` extra'' blue galaxies have their star formation suppressed by an unspecified mechanism or mechanisms; simple cessation of star formation in these extra blue galaxies is approximately sufficient to build up the red sequence at M less than or similar to 10(11) M (circle dot). |
WOS标题词 | Science & Technology ; Physical Sciences |
学科主题 | Astronomy & Astrophysics |
类目[WOS] | Astronomy & Astrophysics |
研究领域[WOS] | Astronomy & Astrophysics |
关键词[WOS] | LUMINOUS INFRARED GALAXIES ; ACTIVE GALACTIC NUCLEI ; DEEP-FIELD-SOUTH ; SPECTRAL ENERGY-DISTRIBUTION ; FRANCE REDSHIFT SURVEY ; DIGITAL SKY SURVEY ; FORMATION HISTORY ; MIDINFRARED EMISSION ; FORMING GALAXIES ; SPACE-TELESCOPE |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000248001500013 |
公开日期 | 2012-02-05 |
源URL | [http://159.226.72.40/handle/332002/2422] ![]() |
专题 | 紫金山天文台_天体化学和行星科学实验室 |
作者单位 | 1.Max Planck Inst Astron, D-69117 Heidelberg, Germany 2.CAS, Purple Mt Observ, Nanjing 210008, Peoples R China 3.Univ Arizona, Steward Observ, Tucson, AZ 85721 USA 4.Astron Rech Inst, D-69120 Heidelberg, Germany 5.Univ Oxford, Dept Phys, Oxford OX1 3RH, England |
推荐引用方式 GB/T 7714 | Bell, Eric F.,Zheng, Xian Zhong,Papovich, Casey,et al. Star formation and the growth of stellar mass[J]. ASTROPHYSICAL JOURNAL,2007,663(2):834-843. |
APA | Bell, Eric F.,Zheng, Xian Zhong,Papovich, Casey,&Borch, Andrea.(2007).Star formation and the growth of stellar mass.ASTROPHYSICAL JOURNAL,663(2),834-843. |
MLA | Bell, Eric F.,et al."Star formation and the growth of stellar mass".ASTROPHYSICAL JOURNAL 663.2(2007):834-843. |
入库方式: OAI收割
来源:紫金山天文台
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