Separate ways: the mass-metallicity relation does not strongly correlate with star formation rate in SDSS-IV MaNGA galaxies
Author
dc.contributor.author
Barrera Ballesteros, J. K.
Author
dc.contributor.author
Sánchez, S. F.
Author
dc.contributor.author
Heckman, T.
Author
dc.contributor.author
Blanc Mendiberri, Guillermo
Admission date
dc.date.accessioned
2018-06-19T20:17:42Z
Available date
dc.date.available
2018-06-19T20:17:42Z
Publication date
dc.date.issued
2017
Cita de ítem
dc.identifier.citation
The Astrophysical Journal, 844:80 (9pp), 2017
es_ES
Identifier
dc.identifier.other
10.3847/1538-4357/aa7aa9
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/149001
Abstract
dc.description.abstract
We present the integrated stellar mass-metallicity relation (MZR) for more than 1700 galaxies included in the integral field area SDSS-IV MaNGA survey. The spatially resolved data allow us to determine the metallicity at the same physical scale (effective radius, R-eff) using a heterogeneous set of 10 abundance calibrators. In addition to scale factors, the shape of the MZR is similar for all calibrators, consistent with those reported previously using single-fiber and integral field spectroscopy. We compare the residuals of this relation against the star formation rate (SFR) and specific SFR (sSFR). We do not find a strong secondary relation of the MZR with either SFR or sSFR for any of the calibrators, in contrast with previous single-fiber spectroscopic studies. Our results agree with a scenario in which metal enrichment happens at local scales, with global outflows playing a secondary role in shaping the chemistry of galaxies and cold-gas inflows regulating the stellar formation.
es_ES
Patrocinador
dc.description.sponsorship
ConaCyt programs
IA-180125
CONICYT/FONDECYT , Programa de Iniciacion
11150220
Alfred P. Sloan Foundation
U.S. Department of Energy Office of Science
Center for High-Performance Computing at the University of Utah
DGAPA
IA100815
IA101217