SDSS-IV MaNGA: spatially resolved star formation histories in galaxies as a function of galaxy mass and type

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dc.contributor.authorGoddard, D.
dc.contributor.authorThomas, D.
dc.contributor.authorMaraston, C.
dc.contributor.authorWestfall, K.
dc.contributor.authorEtherington, J.
dc.contributor.authorRiffel, R.
dc.contributor.authorMallmann, N. D.
dc.contributor.authorZheng, Z.
dc.contributor.authorArgudo Fernandez, M.
dc.contributor.authorLian, J.
dc.contributor.authorBershady, M.
dc.contributor.authorBundy, K.
dc.contributor.authorDrory, N.
dc.contributor.authorLaw, D.
dc.contributor.authorYan, R.
dc.contributor.authorWake, D.
dc.contributor.authorWeijmans, A.
dc.contributor.authorBizyaev, D.
dc.contributor.authorBrownstein, J.
dc.contributor.authorLane, R. R.
dc.contributor.authorMaiolino, R.
dc.contributor.authorMasters, K.
dc.contributor.authorMerrifield, M.
dc.contributor.authorNitschelm, C.
dc.contributor.authorPan, K.
dc.contributor.authorRoman Lopes, A.
dc.contributor.authorStorchi Bergmann, T.
dc.contributor.authorSchneider, D. P.
dc.date.accessioned2024-01-10T12:08:24Z
dc.date.available2024-01-10T12:08:24Z
dc.date.issued2017
dc.description.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.
dc.description.funderSTFC PhD studentship
dc.description.funderNSF
dc.description.funderLeverhulme Early Career Fellowship
dc.description.funderCNPq
dc.description.funderFapergs
dc.description.funderScience and Technology Facilities Council (STFC)
dc.description.funderERC 'QUENCH'
dc.description.funderInstitute of Cosmology of Gravitation
dc.description.funderSEPNet
dc.description.funderUniversity of Portsmouth
dc.description.funderAlfred P. Sloan Foundation
dc.description.funderU.S. Department of Energy Office of Science
dc.description.funderCenter for High-Performance Computing at the University of Utah
dc.description.funderScience and Technology Facilities Council
dc.fechaingreso.objetodigital2024-04-29
dc.format.extent28 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1093/mnras/stw3371
dc.identifier.eissn1365-2966
dc.identifier.issn0035-8711
dc.identifier.urihttps://doi.org/10.1093/mnras/stw3371
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/76389
dc.identifier.wosidWOS:000402849400070
dc.information.autorucFísica;Lane RR;S/I;1021384
dc.issue.numero4
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final4758
dc.pagina.inicio4731
dc.publisherOXFORD UNIV PRESS
dc.revistaMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
dc.rightsacceso restringido
dc.subjectgalaxies: elliptical and lenticular
dc.subjectcD
dc.subjectgalaxies: evolution
dc.subjectgalaxies: formation
dc.subjectgalaxies: spiral
dc.subjectgalaxies: star formation
dc.subjectgalaxies: stellar content
dc.subjectSTELLAR POPULATION GRADIENTS
dc.subjectDIGITAL SKY SURVEY
dc.subjectINSIDE-OUT GROWTH
dc.subjectMETALLICITY GRADIENTS
dc.subjectCOMA CLUSTER
dc.subjectELLIPTIC GALAXIES
dc.subjectCOLOR GRADIENTS
dc.subjectMORPHOLOGICAL CLASSIFICATIONS
dc.subjectILLUSTRIS PROJECT
dc.subjectSPIRAL GALAXIES
dc.titleSDSS-IV MaNGA: spatially resolved star formation histories in galaxies as a function of galaxy mass and type
dc.typeartículo
dc.volumen466
sipa.codpersvinculados1021384
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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