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SDSS-IV MaNGA: spatially resolved star formation histories in galaxies as a function of galaxy mass and type
Goddard, D.1; Thomas, D.1; Maraston, C.1; Westfall, K.1; Etherington, J.1; Riffel, R.2,3; Mallmann, N. D.2,3; Zheng, Z.4; Argudo-Fernandez, M.5; Lian, J.1; Bershady, M.6; Bundy, K.7; Drory, N.8; Law, D.9; Yan, R.10; Wake, D.6,11; Weijmans, A.12; Bizyaev, D.13; Brownstein, J.14; Lane, R. R.15; Maiolino, R.16,17; Masters, K.1; Merrifield, M.18; Nitschelm, C.19; Pan, K.13; Roman-Lopes, A.20; Storchi-Bergmann, T.2,3; Schneider, D. P.21,22
2017-05-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume466Issue:4Pages:4731-4758
AbstractWe study the internal gradients of stellar population propertieswithin 1.5 R-e for a representative sample of 721 galaxies, with stellar masses ranging between 10(9)M circle dot and 10(11.5)M circle dot from the SDSS-IV MaNGA Integral-Field-Unit survey. Through the use of our full spectral fitting code FIREFLY, we derive light-and mass-weighted stellar population properties and their radial gradients, as well as full star formation and metal enrichment histories. We also quantify the impact that different stellar population models and full spectral fitting routines have on the derived stellar population properties and the radial gradient measurements. In our analysis, we find that age gradients tend to be shallow for both early-type and late-type galaxies. Mass-weighted age gradients of early-types arepositive (similar to 0.09 dex/Re) pointing to ` outsidein' progression of star formation, while late-type galaxies have negative light-weighted age gradients (similar to-0.11 dex/R-e), suggesting an ` inside-out' formation of discs. We detect negative metallicity gradients in both early-and late-type galaxies, but these are significantly steeper in late-types, suggesting that the radial dependence of chemical enrichment processes and the effect of gas inflow and metal transport are far more pronounced in discs. Metallicity gradients of both morphological classes correlate with galaxy mass, with negative metallicity gradients becoming steeper with increasing galaxy mass. The correlation with mass is stronger for late-type galaxies, with a slope of d(del[Z/H])/d(logM) similar to -0.2 +/- 0.05, compared to d(del[Z/H])/d(logM) similar to -0.05 +/- 0.05 for early-types. This result suggests that the merger history plays a relatively small role in shaping metallicity gradients of galaxies.
SubtypeArticle
KeywordGalaxies: Elliptical And Lenticular Cd Galaxies: Evolution Galaxies: Formation Galaxies: Spiral Galaxies: Star Formation Galaxies: Stellar Content
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationSTFC PhD studentship ; STFC PhD studentship ; NSF(AST-1517006) ; NSF(AST-1517006) ; Leverhulme Early Career Fellowship ; Leverhulme Early Career Fellowship ; CNPq ; CNPq ; Fapergs ; Fapergs ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; ERC 'QUENCH'(695671) ; ERC 'QUENCH'(695671) ; Institute of Cosmology of Gravitation ; Institute of Cosmology of Gravitation ; SEPNet ; SEPNet ; University of Portsmouth ; University of Portsmouth ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; Center for High-Performance Computing at the University of Utah ; Center for High-Performance Computing at the University of Utah ; (RSCF-14-22-00041) ; (RSCF-14-22-00041) ; STFC PhD studentship ; STFC PhD studentship ; NSF(AST-1517006) ; NSF(AST-1517006) ; Leverhulme Early Career Fellowship ; Leverhulme Early Career Fellowship ; CNPq ; CNPq ; Fapergs ; Fapergs ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; ERC 'QUENCH'(695671) ; ERC 'QUENCH'(695671) ; Institute of Cosmology of Gravitation ; Institute of Cosmology of Gravitation ; SEPNet ; SEPNet ; University of Portsmouth ; University of Portsmouth ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; Center for High-Performance Computing at the University of Utah ; Center for High-Performance Computing at the University of Utah ; (RSCF-14-22-00041) ; (RSCF-14-22-00041)
DOI10.1093/mnras/stw3371
WOS KeywordSTELLAR POPULATION GRADIENTS ; DIGITAL SKY SURVEY ; INTEGRAL-FIELD SPECTROGRAPH ; INSIDE-OUT GROWTH ; 2.5 M TELESCOPE ; ELLIPTIC GALAXIES ; METALLICITY GRADIENTS ; SPIRAL GALAXIES ; CALIFA SURVEY ; COMA CLUSTER
Indexed BySCI
Language英语
Funding OrganizationSTFC PhD studentship ; STFC PhD studentship ; NSF(AST-1517006) ; NSF(AST-1517006) ; Leverhulme Early Career Fellowship ; Leverhulme Early Career Fellowship ; CNPq ; CNPq ; Fapergs ; Fapergs ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; ERC 'QUENCH'(695671) ; ERC 'QUENCH'(695671) ; Institute of Cosmology of Gravitation ; Institute of Cosmology of Gravitation ; SEPNet ; SEPNet ; University of Portsmouth ; University of Portsmouth ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; Center for High-Performance Computing at the University of Utah ; Center for High-Performance Computing at the University of Utah ; (RSCF-14-22-00041) ; (RSCF-14-22-00041) ; STFC PhD studentship ; STFC PhD studentship ; NSF(AST-1517006) ; NSF(AST-1517006) ; Leverhulme Early Career Fellowship ; Leverhulme Early Career Fellowship ; CNPq ; CNPq ; Fapergs ; Fapergs ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; ERC 'QUENCH'(695671) ; ERC 'QUENCH'(695671) ; Institute of Cosmology of Gravitation ; Institute of Cosmology of Gravitation ; SEPNet ; SEPNet ; University of Portsmouth ; University of Portsmouth ; Alfred P. Sloan Foundation ; Alfred P. Sloan Foundation ; U.S. Department of Energy Office of Science ; U.S. Department of Energy Office of Science ; Center for High-Performance Computing at the University of Utah ; Center for High-Performance Computing at the University of Utah ; (RSCF-14-22-00041) ; (RSCF-14-22-00041)
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000402849400070
Citation statistics
Cited Times:55[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8793
Collection星系宇宙学研究部
Affiliation1.Univ Portsmouth, Inst Cosmol & Gravitat, Burnaby Rd, Portsmouth PO1 3FX, Hants, England
2.Univ Fed Rio Grande do Sul, Inst Fis, Campus Vale,CP 15051, BR-91501970 Porto Alegre, RS, Brazil
3.Lab Interinstituc E Astron, Rua Gen Jose Cristino,77 Vasco da Gama, BR-20921400 Rio De Janeiro, Brazil
4.Chinese Acad Sci, Natl Astron Observ, A20 Datun Rd, Beijing 100012, Peoples R China
5.Univ Antofagasta, Fac Cs Basicas, Unidad Astron, Avda Univ Antofagasta, Antofagasta 02800, Chile
6.Univ Wisconsin, Dept Astron, 475 N Charter St, Madison, WI 53706 USA
7.Univ Tokyo, Inst Adv Study, Kavli Inst Phys & Math Universe WPI, Kashiwa, Chiba 2778583, Japan
8.Univ Texas Austin, Dept Astron, McDonald Observ, 1 Univ Stn, Austin, TX 78712 USA
9.Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA
10.Univ Kentucky, Dept Phys & Astron, 505 Rose St, Lexington, KY 40506 USA
11.Open Univ, Dept Phys Sci, Milton Keynes MK7 6AA, Bucks, England
12.Univ St Andrews, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland
13.Apache Point Observ, POB 59, Sunspot, NM 88349 USA
14.Univ Utah, Dept Phys & Astron, 115 S 1400 E, Salt Lake City, UT 84112 USA
15.Pontificia Univ Catolica Chile, Inst Astrofis, Av Vicuna Mackenna 4860, Santiago 7820436, Chile
16.Univ Cambridge, Cavendish Astrophys, Cambridge CB3 0HE, England
17.Univ Cambridge, Kavli Inst Cosmol, Cambridge CB3 0HE, England
18.Univ Nottingham, Sch Phys & Astron, Univ Pk, Nottingham NG7 2RD, England
19.Univ Antofagasta, Unidad Astron, Ave Angamos 601, Antofagasta 1270300, Chile
20.Univ La Serena, Fac Ciencias, Dept Fis, Cisternas 1200, La Serena, Chile
21.Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA
22.Penn State Univ, Inst Gravitat & Cosmos, University Pk, PA 16802 USA
Recommended Citation
GB/T 7714
Goddard, D.,Thomas, D.,Maraston, C.,et al. SDSS-IV MaNGA: spatially resolved star formation histories in galaxies as a function of galaxy mass and type[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,466(4):4731-4758.
APA Goddard, D..,Thomas, D..,Maraston, C..,Westfall, K..,Etherington, J..,...&Schneider, D. P..(2017).SDSS-IV MaNGA: spatially resolved star formation histories in galaxies as a function of galaxy mass and type.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,466(4),4731-4758.
MLA Goddard, D.,et al."SDSS-IV MaNGA: spatially resolved star formation histories in galaxies as a function of galaxy mass and type".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 466.4(2017):4731-4758.
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