FROM OUTSIDE-IN TO INSIDE-OUT: GALAXY ASSEMBLY MODE DEPENDS ON STELLAR MASS
文献类型：期刊论文
| 作者 | Pan, Zhizheng1; Li, Jinrong2,3; Lin, Weipeng1,5; Wang, Jing4; Fan, Lulu2,3; Kong, Xu2,3 |
| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 出版日期 | 2015-05-10 |
| 卷号 | 804期号:2页码:1 |
| 关键词 | galaxies: evolution galaxies: star formation |
| 英文摘要 | In this Letter, we investigate how galaxy mass assembly mode depends on stellar mass M-* using a large sample of similar to 10,000 low-redshift galaxies. Our galaxy sample is selected to have SDSS R-90 > 5 ''(), which allows the measures of both the integrated and the central NUV-r color indices. We find that in the M-*-(NUV-r) green valley (GV), the M-* < 10(10) M-circle dot galaxies mostly have positive or flat color gradients, while most of the M-* > 10(10.5) M-circle dot galaxies have negative color gradients. When their central D(n)4000 index values exceed 1.6, the M-* < 10(10.0) M-circle dot galaxies have moved to the UV red sequence, whereas a large fraction of the M-* > 10(10.5) M-circle dot galaxies still lie on the UV blue cloud or the GV region. We conclude that the main galaxy assembly mode is transiting from "the outside-in" mode to "the inside-out" mode at M-* < 10(10) M-circle dot and at M-* > 10(10.5) M-circle dot. We argue that the physical origin of this is the compromise between the internal and the external processes that drive the star formation quenching in galaxies. These results can be checked with the upcoming large data produced by the ongoing integral field spectroscopic survey projects, such as CALIFA, MaNGA, and SAMI in the near future. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | DIGITAL SKY SURVEY ; UV-OPTICAL COLORS ; INTERNAL STRUCTURE ; CLUSTER GALAXIES ; DWARF GALAXIES ; STAR-FORMATION ; GREEN VALLEY ; BLACK-HOLES ; EVOLUTION ; REDSHIFT |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000354293200016 |
| 公开日期 | 2015-08-18 |
| 源URL | [http://119.78.226.72/handle/331011/18268]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China 2.Univ Sci & Technol China, Ctr Astrophys, Hefei 230026, Peoples R China 3.Chinese Acad Sci, USTC, Key Lab Res Galaxies & Cosmol, Beijing, Peoples R China 4.Australia Telescope Natl Facil, CSIRO Astron & Space Sci, Epping, NSW 1710, Australia 5.Sun Yat Sen Univ, Sch Astron & Space Sci, Guangzhou 510275, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Pan, Zhizheng,Li, Jinrong,Lin, Weipeng,et al. FROM OUTSIDE-IN TO INSIDE-OUT: GALAXY ASSEMBLY MODE DEPENDS ON STELLAR MASS[J]. ASTROPHYSICAL JOURNAL LETTERS,2015,804(2):1. |
| APA | Pan, Zhizheng,Li, Jinrong,Lin, Weipeng,Wang, Jing,Fan, Lulu,&Kong, Xu.(2015).FROM OUTSIDE-IN TO INSIDE-OUT: GALAXY ASSEMBLY MODE DEPENDS ON STELLAR MASS.ASTROPHYSICAL JOURNAL LETTERS,804(2),1. |
| MLA | Pan, Zhizheng,et al."FROM OUTSIDE-IN TO INSIDE-OUT: GALAXY ASSEMBLY MODE DEPENDS ON STELLAR MASS".ASTROPHYSICAL JOURNAL LETTERS 804.2(2015):1. |
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