Recovering stellar population parameters via different population models and stellar libraries
文献类型：期刊论文
| 作者 | Ge, Junqiang1; Mao, Shude1,2,3; Lu, Youjun1,4; Cappellari, Michele5; Yan, Renbin6 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2019-05-01 |
| 卷号 | 485期号:2页码:1675-1693 |
| ISSN号 | 0035-8711 |
| 关键词 | galaxies: evolution galaxies: fundamental parameters |
| DOI | 10.1093/mnras/stz418 |
| 英文摘要 | Three basic ingredients are required to generate a simple stellar population (SSP) library, i.e. an initial mass function (IMF), a stellar evolution model/isochrones, and an empirical/theoretical stellar spectral library. However, there are still some uncertainties to the determination and understanding of these ingredients. We perform the spectral fitting to test the relative parameter offsets between these uncertainties using two different stellar population models, two different empirical stellar libraries, two different isochrones, and the Salpeter and Chabrier IMFs. Based on these setups, we select five SSP libraries generated with the Galaxev/STELIB and Vazdekis/MILES models, and apply them to the pPXF full-spectrum fitting of both MaNGA and mock spectra. We find that: (1) Compared to the Galaxev/STELIB model, spectral fitting qualities with the Vazdekis/MILES model have significant improvements for those metal-rich (especially oversolar) spectra, which cause better reduced chi(2) distributions and more precisely fitted absorption lines. This might due to the lack of metal-rich stars in the empirical STELIB library, or code improvement of the Vazdekis model. (2) When applying the Vazdekis/MILES model for spectral fitting, the IMF variation will lead to not only a systematic offset in M-*/L-r, but also offsets in age and metallicity, and these offsets increase with increasing stellar population ages. However, the IMF variation caused metallicity offsets disappear in the case of Galaxev/STELIB based libraries. (3) The Padova2000 model provides a better match to the MaNGA galaxy spectra at [M/H](L) < -1.0, while the BaSTI model match the local galaxy spectra better at [M/H](L) > -1.0. Current tests suggest that spectral fitting with the Vazdekis/MILES + BaSTI combination would be a better choice for local galaxies. |
| WOS关键词 | INITIAL MASS FUNCTION ; EARLY-TYPE GALAXIES ; EVOLUTIONARY SYNTHESIS ; STAR-FORMATION ; THEORETICAL ISOCHRONES ; SPECTRAL EVOLUTION ; ELLIPTIC GALAXIES ; GLOBULAR-CLUSTERS ; METALLICITY ; RESOLUTION |
| 资助项目 | National Key Basic Research and Development Program of China[2018YFA0404501] ; National Natural Science Foundation of China (NSFC)[11473032] ; National Natural Science Foundation of China (NSFC)[11333003] ; National Natural Science Foundation of China (NSFC)[11761131004] ; National Natural Science Foundation of China (NSFC)[11390372] ; National Natural Science Foundation of China (NSFC)[11690024] ; National Key Program for Science and Technology Research and Development[2016YFA0400704] ; Royal Society University Research Fellowship ; National Science Foundation[AST-1715898] ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; Centre for High-Performance Computing at the University of Utah ; Carnegie Institution for Science ; Chilean Participation Group ; French Participation Group ; Harvard-Smithsonian Center for Astrophysics ; Johns Hopkins University ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo ; Max-Planck-Institut fur Astrophysik (MPA Garching) ; Max-Planck-Institut fur Extraterrestrische Physik (MPE) ; New Mexico State University, New York University, University of Notre Dame, Observatario Nacional/MCTI ; Shanghai Astronomical Observatory, United Kingdom Participation Group ; Yale University |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:000474886200013 |
| 资助机构 | National Key Basic Research and Development Program of China ; National Key Basic Research and Development Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; Royal Society University Research Fellowship ; Royal Society University Research Fellowship ; National Science Foundation ; National Science Foundation ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; Centre for High-Performance Computing at the University of Utah ; Centre for High-Performance Computing at the University of Utah ; Carnegie Institution for Science ; Carnegie Institution for Science ; Chilean Participation Group ; Chilean Participation Group ; French Participation Group ; French Participation Group ; Harvard-Smithsonian Center for Astrophysics ; Harvard-Smithsonian Center for Astrophysics ; Johns Hopkins University ; Johns Hopkins University ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo ; Max-Planck-Institut fur Astrophysik (MPA Garching) ; Max-Planck-Institut fur Astrophysik (MPA Garching) ; Max-Planck-Institut fur Extraterrestrische Physik (MPE) ; Max-Planck-Institut fur Extraterrestrische Physik (MPE) ; New Mexico State University, New York University, University of Notre Dame, Observatario Nacional/MCTI ; New Mexico State University, New York University, University of Notre Dame, Observatario Nacional/MCTI ; Shanghai Astronomical Observatory, United Kingdom Participation Group ; Shanghai Astronomical Observatory, United Kingdom Participation Group ; Yale University ; Yale University ; National Key Basic Research and Development Program of China ; National Key Basic Research and Development Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; Royal Society University Research Fellowship ; Royal Society University Research Fellowship ; National Science Foundation ; National Science Foundation ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; Centre for High-Performance Computing at the University of Utah ; Centre for High-Performance Computing at the University of Utah ; Carnegie Institution for Science ; Carnegie Institution for Science ; Chilean Participation Group ; Chilean Participation Group ; French Participation Group ; French Participation Group ; Harvard-Smithsonian Center for Astrophysics ; Harvard-Smithsonian Center for Astrophysics ; Johns Hopkins University ; Johns Hopkins University ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo ; Max-Planck-Institut fur Astrophysik (MPA Garching) ; Max-Planck-Institut fur Astrophysik (MPA Garching) ; Max-Planck-Institut fur Extraterrestrische Physik (MPE) ; Max-Planck-Institut fur Extraterrestrische Physik (MPE) ; New Mexico State University, New York University, University of Notre Dame, Observatario Nacional/MCTI ; New Mexico State University, New York University, University of Notre Dame, Observatario Nacional/MCTI ; Shanghai Astronomical Observatory, United Kingdom Participation Group ; Shanghai Astronomical Observatory, United Kingdom Participation Group ; Yale University ; Yale University ; National Key Basic Research and Development Program of China ; National Key Basic Research and Development Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; Royal Society University Research Fellowship ; Royal Society University Research Fellowship ; National Science Foundation ; National Science Foundation ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; Centre for High-Performance Computing at the University of Utah ; Centre for High-Performance Computing at the University of Utah ; Carnegie Institution for Science ; Carnegie Institution for Science ; Chilean Participation Group ; Chilean Participation Group ; French Participation Group ; French Participation Group ; Harvard-Smithsonian Center for Astrophysics ; Harvard-Smithsonian Center for Astrophysics ; Johns Hopkins University ; Johns Hopkins University ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo ; Max-Planck-Institut fur Astrophysik (MPA Garching) ; Max-Planck-Institut fur Astrophysik (MPA Garching) ; Max-Planck-Institut fur Extraterrestrische Physik (MPE) ; Max-Planck-Institut fur Extraterrestrische Physik (MPE) ; New Mexico State University, New York University, University of Notre Dame, Observatario Nacional/MCTI ; New Mexico State University, New York University, University of Notre Dame, Observatario Nacional/MCTI ; Shanghai Astronomical Observatory, United Kingdom Participation Group ; Shanghai Astronomical Observatory, United Kingdom Participation Group ; Yale University ; Yale University ; National Key Basic Research and Development Program of China ; National Key Basic Research and Development Program of China ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; Royal Society University Research Fellowship ; Royal Society University Research Fellowship ; National Science Foundation ; National Science Foundation ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; Centre for High-Performance Computing at the University of Utah ; Centre for High-Performance Computing at the University of Utah ; Carnegie Institution for Science ; Carnegie Institution for Science ; Chilean Participation Group ; Chilean Participation Group ; French Participation Group ; French Participation Group ; Harvard-Smithsonian Center for Astrophysics ; Harvard-Smithsonian Center for Astrophysics ; Johns Hopkins University ; Johns Hopkins University ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo ; Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo ; Max-Planck-Institut fur Astrophysik (MPA Garching) ; Max-Planck-Institut fur Astrophysik (MPA Garching) ; Max-Planck-Institut fur Extraterrestrische Physik (MPE) ; Max-Planck-Institut fur Extraterrestrische Physik (MPE) ; New Mexico State University, New York University, University of Notre Dame, Observatario Nacional/MCTI ; New Mexico State University, New York University, University of Notre Dame, Observatario Nacional/MCTI ; Shanghai Astronomical Observatory, United Kingdom Participation Group ; Shanghai Astronomical Observatory, United Kingdom Participation Group ; Yale University ; Yale University |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/26996]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Ge, Junqiang |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, 20 Datun Rd, Beijing 100101, Peoples R China 2.Tsinghua Univ, Phys Dept, Beijing 100084, Peoples R China 3.Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China 4.Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 5.Univ Oxford, Dept Phys, Sub Dept Astrophys, Denys Wilkinson Bldg,Keble Rd, Oxford OX1 3RH, England 6.Univ Kentucky, Dept Phys & Astron, 505 Rose St, Lexington, KY 40506 USA |
| 推荐引用方式 GB/T 7714 | Ge, Junqiang,Mao, Shude,Lu, Youjun,et al. Recovering stellar population parameters via different population models and stellar libraries[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2019,485(2):1675-1693. |
| APA | Ge, Junqiang,Mao, Shude,Lu, Youjun,Cappellari, Michele,&Yan, Renbin.(2019).Recovering stellar population parameters via different population models and stellar libraries.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,485(2),1675-1693. |
| MLA | Ge, Junqiang,et al."Recovering stellar population parameters via different population models and stellar libraries".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 485.2(2019):1675-1693. |
入库方式： OAI收割
来源：国家天文台
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