SDSS-IV MaNGA: environmental dependence of stellar age and metallicity gradients in nearby galaxies
文献类型：期刊论文
| 作者 | Zheng, Zheng1 ; Wang, Huiyuan2; Ge, Junqiang1; Mao, Shude1,3,4,5; Li, Cheng3,4,6; Li, Ran1; Mo, Houjun3,4,7; Goddard, Daniel8; Bundy, Kevin; Li, Hongyu1,9
|
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2017-03-01 |
| 卷号 | 465期号:4页码:4572-4588 |
| 关键词 | galaxies: abundances galaxies: evolution galaxies: formation galaxies: statistics galaxies: stellar content galaxies: structure |
| 英文摘要 | We present a study on the stellar age and metallicity distributions for 1105 galaxies using the STARLIGHT software on MaNGA (Mapping Nearby Galaxies at APO) integral field spectra. We derive age and metallicity gradients by fitting straight lines to the radial profiles, and explore their correlations with total stellar mass M-*, NUV - r colour and environments, as identified by both the large-scale structure (LSS) type and the local density. We find that the mean age and metallicity gradients are close to zero but slightly negative, which is consistent with the inside-out formation scenario. Within our sample, we find that both the age and metallicity gradients show weak or no correlation with either the LSS type or local density environment. In addition, we also study the environmental dependence of age and metallicity values at the effective radii. The age and metallicity values are highly correlated with M-* and NUV - r and are also dependent on LSS type as well as local density. Low-mass galaxies tend to be younger and have lower metallicity in low-density environments while high-mass galaxies are less affected by environment. |
| 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 ; INTEGRAL-FIELD SPECTROSCOPY ; STAR-FORMATION HISTORIES ; DISK FORMATION SCENARIOS ; INITIAL MASS FUNCTION ; DARK-MATTER HALOES ; MEDIUM-DEEP SURVEY ; POPULATION GRADIENTS ; COLOR GRADIENTS ; ELLIPTIC GALAXIES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000395170200059 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/8264]  |
| 专题 | 国家天文台_星系宇宙学研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, A20 Datun Rd, Beijing 100012, Peoples R China 2.Univ Sci & Technol China, Dept Astron, Key Lab Res Galaxies & Cosmol, Hefei 230026, Anhui, Peoples R China 3.Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China 4.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China 5.Univ Manchester, Sch Phys & Astron, Jodrell Bank Ctr Astrophys, Oxford Rd, Manchester M13 9PL, Lancs, England 6.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 7.Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA 8.Univ Portsmouth, Inst Cosmol & Gravitat, Dennis Sciama Bldg, Portsmouth PO1 3FX, Hants, England 9.Univ Tokyo, Kavli IPMU WP, UTIAS, Kashiwa, Chiba 2778583, Japan 10.Univ Alabama, Tuscaloosa, AL 35487 USA |
| 推荐引用方式 GB/T 7714 | Zheng, Zheng,Wang, Huiyuan,Ge, Junqiang,et al. SDSS-IV MaNGA: environmental dependence of stellar age and metallicity gradients in nearby galaxies[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,465(4):4572-4588. |
| APA | Zheng, Zheng.,Wang, Huiyuan.,Ge, Junqiang.,Mao, Shude.,Li, Cheng.,...&Malanushenko, Olena.(2017).SDSS-IV MaNGA: environmental dependence of stellar age and metallicity gradients in nearby galaxies.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,465(4),4572-4588. |
| MLA | Zheng, Zheng,et al."SDSS-IV MaNGA: environmental dependence of stellar age and metallicity gradients in nearby galaxies".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 465.4(2017):4572-4588. |
入库方式： OAI收割
来源：国家天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。