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Environmental effects on satellite galaxies: the link between concentration, size and colour profile
文献类型：期刊论文
| 作者 | Weinmann, Simone M.1; Kauffmann, Guinevere1; van den Bosch, Frank C.2; Pasquali, Anna2; McIntosh, Daniel H.3,4; Mo, Houjun3; Yang, Xiaohu5; Guo, Yicheng3 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2009-04-11 |
| 卷号 | 394期号:3页码:1213-1228 |
| 关键词 | galaxies: clusters: general galaxies: evolution galaxies: fundamental parameters galaxies: haloes galaxies: statistics galaxies: structure |
| 英文摘要 | Using the Sloan Digital Sky Survey Data Release 4 group catalogue of Yang et al., we investigate sizes, concentrations, colour gradients and surface brightness profiles of central and satellite galaxies. We compare central and satellite galaxies at fixed stellar mass, in order to disentangle environmental from stellar mass dependencies. Early-and late-type galaxies are defined according to concentration. We find that at fixed stellar mass, late-type satellite galaxies have smaller radii and larger concentrations than late-type central galaxies. No such differences are found for early-type galaxies. We have also constructed surface brightness and colour profiles for the central and satellite galaxies in our sample. We find that late-type satellite galaxies have a lower surface brightness and redder colours than late-type central galaxies. We show that all observed differences between satellite and central galaxies can be explained by a simple fading model, in which the star formation in the disc decreases over time-scales of 2-3 Gyr after a galaxy becomes a satellite. Processes that induce strong morphological changes (e. g. harassment) and processes that strip the galaxy of its entire interstellar medium need not to be invoked in order to explain the environmental dependencies we find. |
| 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 ; LOW-DENSITY ENVIRONMENTS ; STAR-FORMATION HISTORIES ; BAND OPTICAL-PROPERTIES ; STELLAR MASS FUNCTIONS ; SPIRAL GALAXIES ; LUMINOSITY FUNCTION ; DISK GALAXIES ; SURFACE-BRIGHTNESS ; CLUSTER GALAXIES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000264820500006 |
| 源URL | [http://119.78.226.72/handle/331011/19544]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Max Planck Inst Astrophys, D-85741 Garching, Germany 2.Max Planck Inst Astron, D-69117 Heidelberg, Germany 3.Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA 4.Univ Missouri, Dept Phys, Kansas City, MO 64110 USA 5.Partner Grp MPA, Shanghai Astron Observ, Shanghai 200030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Weinmann, Simone M.,Kauffmann, Guinevere,van den Bosch, Frank C.,et al. Environmental effects on satellite galaxies: the link between concentration, size and colour profile[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2009,394(3):1213-1228. |
| APA | Weinmann, Simone M..,Kauffmann, Guinevere.,van den Bosch, Frank C..,Pasquali, Anna.,McIntosh, Daniel H..,...&Guo, Yicheng.(2009).Environmental effects on satellite galaxies: the link between concentration, size and colour profile.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,394(3),1213-1228. |
| MLA | Weinmann, Simone M.,et al."Environmental effects on satellite galaxies: the link between concentration, size and colour profile".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 394.3(2009):1213-1228. |
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来源：上海天文台
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