Effects of environment on sSFR profiles of late-type galaxies in the CALIFA survey. (arXiv:1811.08910v1 [astro-ph.GA])
<a href="http://arxiv.org/find/astro-ph/1/au:+Coenda_V/0/1/0/all/0/1">V. Coenda</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Mast_D/0/1/0/all/0/1">D. Mast</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Martinez_H/0/1/0/all/0/1">H. J. Martínez</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Muriel_H/0/1/0/all/0/1">H. Muriel</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Merchan_M/0/1/0/all/0/1">M. Merchán</a>
We explore the effects of environment on star formation in late-type galaxies
by studying the dependence of the radial profiles of specific star formation
rate (sSFR) on environment and the stellar mass, using a sample of 275
late-type galaxies drawn from the CALIFA survey. We consider three different
discrete environments: field galaxies, galaxies in pairs, and galaxies in
groups, with stellar masses $9le log(M_{star}/M_{odot}) le 12$, and
compare their sSFR profiles across the environments. Our results suggest that
the stellar mass is the main factor determining the sSFR profiles of late-type
galaxies; the influence of AGNs and bars are secondary. We find that the
relative size of the bulge plays a key role in depressing star formation
towards the center of late-type galaxies. The group environment determines
clear differences in the sSFR profiles of galaxies. We find evidence of an
outside-in action upon galaxies with stellar masses $9le
log(M_{star}/M_{odot}) le 10$ in groups. We find a much stronger
suppression of star formation in the inner regions of massive galaxies in
groups, which may be an indication of a different merger history.
We explore the effects of environment on star formation in late-type galaxies
by studying the dependence of the radial profiles of specific star formation
rate (sSFR) on environment and the stellar mass, using a sample of 275
late-type galaxies drawn from the CALIFA survey. We consider three different
discrete environments: field galaxies, galaxies in pairs, and galaxies in
groups, with stellar masses $9le log(M_{star}/M_{odot}) le 12$, and
compare their sSFR profiles across the environments. Our results suggest that
the stellar mass is the main factor determining the sSFR profiles of late-type
galaxies; the influence of AGNs and bars are secondary. We find that the
relative size of the bulge plays a key role in depressing star formation
towards the center of late-type galaxies. The group environment determines
clear differences in the sSFR profiles of galaxies. We find evidence of an
outside-in action upon galaxies with stellar masses $9le
log(M_{star}/M_{odot}) le 10$ in groups. We find a much stronger
suppression of star formation in the inner regions of massive galaxies in
groups, which may be an indication of a different merger history.
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