Physical properties of distant red galaxies in the COSMOS/UltraVISTA field
文献类型：期刊论文
| 作者 | Ma, Zhongyang1,2; Fang, Guanwen3; Kong, Xu1,2; Fan, Lulu4 |
| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
 |
| 出版日期 | 2015-10-01 |
| 卷号 | 67期号:5页码:1 |
| 关键词 | galaxies: evolution galaxies: formation galaxies: high-redshift galaxies: structure |
| 英文摘要 | We present a study on physical properties for a large distant red galaxy (DRG) sample, using the K-selected multi-band photometry catalog of the COSMOS/UltraVISTA field and the CANDELS near-infrared data. Our sample includes 4485 DRGs with (J - K)(AB) > 1.16 and K-AB < 23.4 mag, and 132 DRGs have HST/WFC3 morphological measurements. The results of nonparametric measurements of DRG morphology are consistent with our rest-frame UVJ color classification; quiescent DRGs are generally compact while star-forming DRGs tend to have extended structures. We find the star formation rate (SFR) and the stellar mass of star-forming DRGs present tight "main sequence" relations in all redshift bins. Moreover, the specific SFR (sSFR) of DRGs increases with redshift in all stellar mass bins and DRGs with higher stellar masses generally have lower sSFRs, which indicates that galaxies were much more active on average in the past, and star formation contributes more to the mass growth of low-mass galaxies than to high-mass galaxies. The infrared-derived SFR dominates the total SFR of DRGs which occupy the high-mass range, implying that the J - K color criterion effectively selects massive and dusty galaxies. DRGs with higher M-* generally have redder (U - V)(rest) colors, and the (U - V)(rest) colors of DRGs become bluer at higher redshifts, suggesting high-mass galaxies have higher internal dust extinctions or older stellar ages and they evolve with time. Finally, we find that DRGs have different overlap among extremely red objects, BzK galaxies, IRAC-selected extremely red objects, and high-z ultraluminous infrared galaxies, indicating that DRGs are not a special population and they can also be selected by other color criteria. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | STAR-FORMING GALAXIES ; SIMILAR-TO 2 ; EARLY DATA RELEASE ; SPECTRAL ENERGY-DISTRIBUTIONS ; SPACE-TELESCOPE OBSERVATIONS ; EXTRAGALACTIC LEGACY SURVEY ; COMPACT QUIESCENT GALAXIES ; HIGH-REDSHIFT GALAXIES ; K-SELECTED GALAXIES ; MOIRCS DEEP SURVEY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000362834000013 |
| 源URL | [http://119.78.226.72/handle/331011/28376]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Univ Sci & Technol China, Dept Astron, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Hefei 230026, Peoples R China 3.Dali Univ, Inst Astron & Hist Sci & Technol, Dali 671003, Peoples R China 4.Shandong Univ, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Inst Space Sci, Weihai 264209, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Zhongyang,Fang, Guanwen,Kong, Xu,et al. Physical properties of distant red galaxies in the COSMOS/UltraVISTA field[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2015,67(5):1. |
| APA | Ma, Zhongyang,Fang, Guanwen,Kong, Xu,&Fan, Lulu.(2015).Physical properties of distant red galaxies in the COSMOS/UltraVISTA field.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,67(5),1. |
| MLA | Ma, Zhongyang,et al."Physical properties of distant red galaxies in the COSMOS/UltraVISTA field".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 67.5(2015):1. |
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来源：上海天文台
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