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From Haloes to Galaxies. II. The Fundamental Relations in Star Formation and Quenching
Dou,Jing1,2; Peng,Yingjie1; Renzini,Alvio3; Ho,Luis C.1,2; Mannucci,Filippo4; Daddi,Emanuele5; Gao,Yu6,7; Maiolino,Roberto8,9,10; Zhang,Chengpeng1,2; Gu,Qiusheng11,12; Li,Di13,14; Lilly,Simon J.15; Yuan,Feng16
2021-02-01
Source PublicationThe Astrophysical Journal
ISSN0004-637X
Volume907Issue:2
AbstractAbstract Star formation and quenching are two of the most important processes in galaxy formation and evolution. We explore in the local universe the interrelationships among key integrated galaxy properties, including stellar mass M*, star formation rate (SFR), specific SFR (sSFR), molecular gas mass M H 2 , star formation efficiency (SFE) of the molecular gas, and the molecular gas to stellar mass ratio μ. We aim to identify the most fundamental scaling relations among these key galaxy properties and their interrelationships. We show that the integrated M H 2 –SFR, SFR–M*, and M H 2 –M* relations can be simply transformed from the μ–sSFR, SFE–μ, and SFE–sSFR relations, respectively. The transformation, in principle, can increase or decrease the scatter of each relation. Interestingly, we find that the latter three relations all have significantly smaller scatter than the corresponding former three. We show that the probability to achieve the observed small scatter by accident is extremely close to zero. This suggests that the smaller scatters of the latter three relations are driven by a more universal physical connection among these quantities. We then show that the large scatters in the former relations are due to their systematic dependence on other galaxy properties, and on the star formation and quenching process. We propose the sSFR–μ–SFE relation as the fundamental formation relation (FFR), which governs the star formation and quenching process and provides a simple framework to study galaxy evolution. Other scaling relations, including the integrated Kennicutt–Schmidt law, star-forming main sequence, and molecular gas main sequence, can all be derived from the FFR.
KeywordGalaxy evolution Star formation Interstellar medium Galaxy formation
DOI10.3847/1538-4357/abd17c
Language英语
WOS IDIOP:0004-637X-907-2-abd17c
PublisherThe American Astronomical Society
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/60428
Collection中国科学院国家天文台
Corresponding AuthorDou,Jing; Peng,Yingjie
Affiliation1.Kavli Institute for Astronomy and Astrophysics, Peking University, 5 Yiheyuan Road, Beijing 100871, People’s Republic of China; yjpeng@pku.edu.cn
2.Department of Astronomy, School of Physics, Peking University, 5 Yiheyuan Road, Beijing 100871, People’s Republic of China
3.INAF—Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, I-35122 Padova, Italy
4.Istituto Nazionale di Astrofisica, Osservatorio Astrofisico di Arcetri, Largo Enrico Fermi 5, I-50125 Firenze, Italy
5.AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité, F-91191 Gif-sur-Yvette, France
6.Purple Mountain Observatory & Key Laboratory for Radio Astronomy, Chinese Academy of Sciences, 10 Yuanhua Road, Nanjing 210033, People’s Republic of China
7.Department of Astronomy, Xiamen University, Xiamen, Fujian 361005, People’s Republic of China
8.Cavendish Laboratory, University of Cambridge, 19 J.J. Thomson Avenue, Cambridge CB3 0HE, UK
9.Kavli Institute for Cosmology, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK
10.Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK
11.School of Astronomy and Space Science, Nanjing University, Nanjing 210093, People’s Republic of China
12.Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing 210093, People’s Republic of China
13.CAS Key Laboratory of FAST, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, People’s Republic of China
14.School of Astronomy and Space Science, University of the Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
15.Department of Physics, ETH Zurich, Wolfgang-Pauli-Strasse 27, CH-8093 Zurich, Switzerland
16.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, People’s Republic of China
Recommended Citation
GB/T 7714
Dou,Jing,Peng,Yingjie,Renzini,Alvio,et al. From Haloes to Galaxies. II. The Fundamental Relations in Star Formation and Quenching[J]. The Astrophysical Journal,2021,907(2).
APA Dou,Jing.,Peng,Yingjie.,Renzini,Alvio.,Ho,Luis C..,Mannucci,Filippo.,...&Yuan,Feng.(2021).From Haloes to Galaxies. II. The Fundamental Relations in Star Formation and Quenching.The Astrophysical Journal,907(2).
MLA Dou,Jing,et al."From Haloes to Galaxies. II. The Fundamental Relations in Star Formation and Quenching".The Astrophysical Journal 907.2(2021).
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