SDSS-IV MANGA: The radial distribution of physical properties within galaxies in the nearby universe
Abstract
Using the largest sample of galaxies observed with an optical integral field unit (IFU, the SDSS-IV MaNGA survey, ≈10000 targets), we derive the radial distribution of the physical properties obtained from the stellar continuum and the ionized-gas emission lines. Given the large sample, we are able to explore the impact of the total stellar mass and morphology by averaging those radial distributions for different bins of both global properties. In general, we find that most of the properties exhibit a negative gradient, with a secondary impact by global properties. Our results confirm the intimate interplay between the properties of the stellar component and those of the ionized gas at local (kpc) scales to set the observed radial gradients. The resemblance of the gradients for similar global properties indicates statistical similar histories of star formation and chemical enrichment, with an initial radial gas distribution following the potential of the galaxy.
Citation
Barrera-Ballesteros , J K , Sánchez , S F , Espinosa-Ponce , C , López-Cobá , C , Carigi , L , Lugo-Aranda , A Z , Lacerda , E , Bruzual , G , Hernandez-Toledo , H , Boardman , N , Drory , N , Lane , R R & Brownstein , J R 2023 , ' SDSS-IV MANGA: The radial distribution of physical properties within galaxies in the nearby universe ' , Revista Mexicana de Astronomía y Astrofísica , vol. 59 , no. 2 , pp. 213-258 . https://doi.org/10.22201/ia.01851101p.2023.59.02.06
Publication
Revista Mexicana de Astronomía y Astrofísica
Status
Peer reviewed
ISSN
0185-1101Type
Journal article
Description
Funding: J.B-B acknowledges support from the grant IA-101522 (DGAPA-PAPIIT, UNAM) and funding from the CONACYT grant CF19-39578. L.C. thanks the support from the grant IN103820 (DGAPA-PAPIIT, UNAM).Collections
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