We present the stellar surface mass density vs. gas metallicity
($\Sigma_*-Z$) relation for more than 500,000 spatially-resolved star-forming
resolution elements (spaxels) from a sample of 653 disk galaxies included in
the SDSS IV MaNGA survey. We find a tight relation between these local
properties, with higher metallicities as the surface density increases. This
relation extends over three orders of magnitude in the surface mass density and
a factor of four in metallicity. We show that this local relationship can
simultaneously reproduce two well-known properties of disk galaxies: their
global mass-metallicity relationship and their radial metallicity
gradients. We also find that the $\Sigma_* - Z$ relation is largely independent
of the galaxy's total stellar mass and specific star-formation rate (sSFR),
except at low stellar mass and high sSFR. These results suggest that in the
present-day universe local properties play a key role in determining the
gas-phase metallicity in typical disk galaxies.
Description
[1609.01740] Do galaxy global relationships emerge from local ones? The SDSS IV MaNGA surface mass density-metallicity relation
%0 Generic
%1 barreraballesteros2016galaxy
%A Barrera-Ballesteros, Jorge K.
%A Heckman, Timothy M.
%A Zhu, Guangtun B.
%A Zakamska, Nadia L.
%A Sánchez, Sebastian F.
%A Law, David
%A Wake, David
%A Green, Jenny E.
%A Bizyaev, Dmitry
%A Oravetz, Daniel
%A Simmons, Audrey
%A Malanushenko, Elena
%A Pan, Kaike
%A Lopes, Alexandre Roman
%A Lane, Richard R.
%D 2016
%K correlation density manga mass metallicity stellar
%T Do galaxy global relationships emerge from local ones? The SDSS IV MaNGA
surface mass density-metallicity relation
%U http://arxiv.org/abs/1609.01740
%X We present the stellar surface mass density vs. gas metallicity
($\Sigma_*-Z$) relation for more than 500,000 spatially-resolved star-forming
resolution elements (spaxels) from a sample of 653 disk galaxies included in
the SDSS IV MaNGA survey. We find a tight relation between these local
properties, with higher metallicities as the surface density increases. This
relation extends over three orders of magnitude in the surface mass density and
a factor of four in metallicity. We show that this local relationship can
simultaneously reproduce two well-known properties of disk galaxies: their
global mass-metallicity relationship and their radial metallicity
gradients. We also find that the $\Sigma_* - Z$ relation is largely independent
of the galaxy's total stellar mass and specific star-formation rate (sSFR),
except at low stellar mass and high sSFR. These results suggest that in the
present-day universe local properties play a key role in determining the
gas-phase metallicity in typical disk galaxies.
@misc{barreraballesteros2016galaxy,
abstract = {We present the stellar surface mass density {\it vs.} gas metallicity
($\Sigma_*-Z$) relation for more than 500,000 spatially-resolved star-forming
resolution elements (spaxels) from a sample of 653 disk galaxies included in
the SDSS IV MaNGA survey. We find a tight relation between these local
properties, with higher metallicities as the surface density increases. This
relation extends over three orders of magnitude in the surface mass density and
a factor of four in metallicity. We show that this local relationship can
simultaneously reproduce two well-known properties of disk galaxies: their
global mass-metallicity relationship {\it and} their radial metallicity
gradients. We also find that the $\Sigma_* - Z$ relation is largely independent
of the galaxy's total stellar mass and specific star-formation rate (sSFR),
except at low stellar mass and high sSFR. These results suggest that in the
present-day universe local properties play a key role in determining the
gas-phase metallicity in typical disk galaxies.},
added-at = {2016-09-08T10:22:59.000+0200},
author = {Barrera-Ballesteros, Jorge K. and Heckman, Timothy M. and Zhu, Guangtun B. and Zakamska, Nadia L. and Sánchez, Sebastian F. and Law, David and Wake, David and Green, Jenny E. and Bizyaev, Dmitry and Oravetz, Daniel and Simmons, Audrey and Malanushenko, Elena and Pan, Kaike and Lopes, Alexandre Roman and Lane, Richard R.},
biburl = {https://www.bibsonomy.org/bibtex/284df18c748d913091b4a2588bbfa8c2e/miki},
description = {[1609.01740] Do galaxy global relationships emerge from local ones? The SDSS IV MaNGA surface mass density-metallicity relation},
interhash = {d982a1d56176ef2f9e91ed8788fee41b},
intrahash = {84df18c748d913091b4a2588bbfa8c2e},
keywords = {correlation density manga mass metallicity stellar},
note = {cite arxiv:1609.01740Comment: 11 pages, 9 Figures. Published in MNRAS. http://adsabs.harvard.edu/doi/10.1093/mnras/stw1984},
timestamp = {2016-09-08T10:22:59.000+0200},
title = {Do galaxy global relationships emerge from local ones? The SDSS IV MaNGA
surface mass density-metallicity relation},
url = {http://arxiv.org/abs/1609.01740},
year = 2016
}