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L-GALAXIES 2020: The evolution of radial metallicity profiles and global metallicities in disc galaxies
Yates, Robert M.1; Henriques, Bruno M. B.2; Fu, Jian3; Kauffmann, Guinevere1; Thomas, Peter A.4; Guo, Qi5; White, Simon D. M.1; Schady, Patricia6
2021-05-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume503Issue:3Pages:4474-4495
AbstractWe present a modified version of the L-GALAXIES 2020 semi-analytic model of galaxy evolution, which includes significantly increased direct metal enrichment of the circumgalactic medium (CGM) by supernovae (SNe). These more metal-rich outflows do not require increased mass-loading factors, in contrast to some other galaxy evolution models. This modified L-GALAXIES 2020 model is able to simultaneously reproduce the gas-phasemetallicity (Z(g)) and stellarmetallicity (Z(*)) radial profiles observed in nearby disc galaxies by MaNGA and MUSE, as well as the observed mass - metallicity relations for gas and stars at z = 0 and their evolution back to z similar to 2-3. A direct CGM enrichment fraction of similar to 90 per cent for SNe-II is preferred. We find that massive disc galaxies have slightly flatter Z(g) profiles than their lower-mass counterparts in L-GALAXIES 2020, due to more efficient enrichment of their outskirts via inside-out growth and metal-rich accretion. Such a weak, positive correlation between stellar mass and Z(g) profile slope is also seen in our MaNGA-DR15 sample of 571 star-forming disc galaxies, although below log(10)(M-*/M-circle dot) similar to 10.0 this observational result is strongly dependent on the metallicity diagnostic and morphological selection chosen. In addition, a lowered maximum SN-II progenitor mass of 25M(circle dot), reflecting recent theoretical and observational estimates, can also provide a good match to observed Z(g) and Z(*) profiles at z = 0 in L-GALAXIES 2020. However, this model version fails to reproduce an evolution in Z(g) at fixed mass over cosmic time, or the magnesium abundances observed in the intracluster medium (ICM).
Keywordmethods: analytical methods: data analysis galaxies: abundances galaxies: evolution
Funding OrganizationZwicky Prize fellowship ; Zwicky Prize fellowship ; Youth innovation Promotion Association CAS ; Youth innovation Promotion Association CAS ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology ; Zwicky Prize fellowship ; Zwicky Prize fellowship ; Youth innovation Promotion Association CAS ; Youth innovation Promotion Association CAS ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology ; Zwicky Prize fellowship ; Zwicky Prize fellowship ; Youth innovation Promotion Association CAS ; Youth innovation Promotion Association CAS ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology ; Zwicky Prize fellowship ; Zwicky Prize fellowship ; Youth innovation Promotion Association CAS ; Youth innovation Promotion Association CAS ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology
DOI10.1093/mnras/stab741
WOS KeywordSTAR-FORMING GALAXIES ; HIGH-SPATIAL-RESOLUTION ; SDSS-IV MANGA ; LOW-MASS ; CHEMICAL ABUNDANCES ; HII-REGIONS ; MILKY-WAY ; H-ALPHA ; STELLAR ; GRADIENTS
Language英语
Funding ProjectZwicky Prize fellowship ; Youth innovation Promotion Association CAS ; Shanghai Committee of Science and Technology[19ZR1466700]
Funding OrganizationZwicky Prize fellowship ; Zwicky Prize fellowship ; Youth innovation Promotion Association CAS ; Youth innovation Promotion Association CAS ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology ; Zwicky Prize fellowship ; Zwicky Prize fellowship ; Youth innovation Promotion Association CAS ; Youth innovation Promotion Association CAS ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology ; Zwicky Prize fellowship ; Zwicky Prize fellowship ; Youth innovation Promotion Association CAS ; Youth innovation Promotion Association CAS ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology ; Zwicky Prize fellowship ; Zwicky Prize fellowship ; Youth innovation Promotion Association CAS ; Youth innovation Promotion Association CAS ; Shanghai Committee of Science and Technology ; Shanghai Committee of Science and Technology
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000649000600096
PublisherOXFORD UNIV PRESS
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Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/77849
Collection中国科学院国家天文台
Corresponding AuthorYates, Robert M.
Affiliation1.Max Planck Inst Astrophys, Karl Schwarzschild Str 1, D-85741 Garching, Germany
2.Swiss Fed Inst Technol, Inst Astron, CH-8093 Zurich, Switzerland
3.Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, CAS, 80 Nandan Rd, Shanghai 200030, Peoples R China
4.Univ Sussex, Astron Ctr, Brighton BN1 9QH, E Sussex, England
5.Chinese Acad Sci, Partner Grp Max Planck Inst Astrophys, Natl Astron Observ, Beijing 100012, Peoples R China
6.Univ Bath, Dept Phys, Bath BA2 7AY, Avon, England
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GB/T 7714
Yates, Robert M.,Henriques, Bruno M. B.,Fu, Jian,et al. L-GALAXIES 2020: The evolution of radial metallicity profiles and global metallicities in disc galaxies[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,503(3):4474-4495.
APA Yates, Robert M..,Henriques, Bruno M. B..,Fu, Jian.,Kauffmann, Guinevere.,Thomas, Peter A..,...&Schady, Patricia.(2021).L-GALAXIES 2020: The evolution of radial metallicity profiles and global metallicities in disc galaxies.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,503(3),4474-4495.
MLA Yates, Robert M.,et al."L-GALAXIES 2020: The evolution of radial metallicity profiles and global metallicities in disc galaxies".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 503.3(2021):4474-4495.
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