On the Transition of the Galaxy Quenching Mode at 0.5 < z < 1 in CANDELS
文献类型：期刊论文
| 作者 | Liu, F. S.1,2,3; Jia, Meng1; Yesuf, Hassen M.2,3; Faber, S. M.2,3; Koo, David C.2,3; Guo, Yicheng4; Bell, Eric F.5; Jiang, Dongfei1; Wang, Weichen6; Koekemoer, Anton M.7 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2018-06-10 |
| 卷号 | 860期号:1页码:16 |
| ISSN号 | 0004-637X |
| 关键词 | galaxies: high-redshift galaxies: photometry galaxies: star formation |
| DOI | 10.3847/1538-4357/aac20d |
| 通讯作者 | Liu, F. S.(fengshan.liu@yahoo.com) |
| 英文摘要 | We investigate the galaxy quenching process at intermediate redshift using a sample of similar to 4400 galaxies with M-* >10(9) M-circle dot between redshift 0.5 and 1.0 in all five CANDELS fields. We divide this sample, using the integrated specific star formation rate (sSFR), into four subgroups: star-forming galaxies (SFGs) above and below the ridge of the star-forming main sequence (SFMS), transition galaxies and quiescent galaxies. We study their UVI (U -V versus V-I) color gradients to infer their sSFR gradients out to twice effective radii. We show that on average both star-forming and transition galaxies at all masses are not fully quenched at any radii, whereas quiescent galaxies are fully quenched at all radii. We find that at low masses (M-* = 10(9) - 10(10) M-circle dot) SFGs both above and below the SFMS ridge generally have flat sSFR profiles, whereas the transition galaxies at the same masses generally have sSFRs that are more suppressed in their outskirts. In contrast, at high masses (M-* > 10(10.5) M-circle dot), SFGs above and below the SFMS ridge and transition galaxies generally have varying degrees of more centrally suppressed sSFRs relative to their outskirts. These findings indicate that at z similar to 0.5-1.0 the main galaxy quenching mode depends on its already formed stellar mass, exhibiting a transition from "the outside-in" at M*<= 10(10) M-circle dot to "the inside-out" at M-* > 10(10.5) M-circle dot. In other words, our findings support that internal processes dominate the quenching of massive galaxies, whereas external processes dominate the quenching of low-mass galaxies. |
| WOS关键词 | STAR-FORMING GALAXIES ; CATALOGS SOURCE IDENTIFICATION ; QUIESCENT GALAXIES ; MAIN-SEQUENCE ; MASS FUNCTION ; EVOLUTION ; STELLAR ; PHOTOMETRY ; ENVIRONMENT ; COMPACTION |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000435102000010 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/21952]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Liu, F. S. |
| 作者单位 | 1.Shenyang Normal Univ, Coll Phys Sci & Technol, Shenyang 110034, Liaoning, Peoples R China 2.Univ Calif Santa Cruz, Univ Calif Observ, Santa Cruz, CA 95064 USA 3.Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA 4.Univ Missouri, Dept Phys & Astron, Columbia, MO 65211 USA 5.Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA 6.Johns Hopkins Univ, Dept Phys & Astron, 3400 N Charles St, Baltimore, MD 21218 USA 7.Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA 8.Chinese Acad Sci, Purple Mt Observ, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China 9.Orange Coast Coll, Dept Astron, Costa Mesa, CA 92626 USA 10.Univ Pacific, Dept Phys, 3601 Pacific Ave, Stockton, CA 95211 USA |
| 推荐引用方式 GB/T 7714 | Liu, F. S.,Jia, Meng,Yesuf, Hassen M.,et al. On the Transition of the Galaxy Quenching Mode at 0.5 < z < 1 in CANDELS[J]. ASTROPHYSICAL JOURNAL,2018,860(1):16. |
| APA | Liu, F. S..,Jia, Meng.,Yesuf, Hassen M..,Faber, S. M..,Koo, David C..,...&Liu, Lu.(2018).On the Transition of the Galaxy Quenching Mode at 0.5 < z < 1 in CANDELS.ASTROPHYSICAL JOURNAL,860(1),16. |
| MLA | Liu, F. S.,et al."On the Transition of the Galaxy Quenching Mode at 0.5 < z < 1 in CANDELS".ASTROPHYSICAL JOURNAL 860.1(2018):16. |
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来源：紫金山天文台
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