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The galaxy stellar mass function from CCSNe with improved photo-z techniques

Sedgwick, TM, Baldry, IK, James, PA and Kelvin, LS The galaxy stellar mass function from CCSNe with improved photo-z techniques. Proceedings of the International Astronomical Union. ISSN 1743-9213 (Accepted)

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Abstract

In Sedgwick et al. (2019) we introduced and utilised a method to combat surface brightness and mass biases in galaxy sample selection, using core-collapse supernovae (CCSNe) as pointers towards their host galaxies, in order to: (i) search for low-surface brightness galaxies (LSBGs); (ii) assess the contributions of galaxies at a given mass to the star-formation-rate density (SFRD); and (iii) infer from this, using estimates of specific star-formation (SF) rate, the form of the SF-galaxy stellar mass function (GSMF). A CCSN-selection of SF-galaxies allows a probe of the form of the SFRD and GSMF deep into the dwarf galaxy mass regime. In the present work, we give improved constraints on our estimates of the SFRD and star-forming GSMF, in light of improved photometric redshift estimates required for estimates of galaxy stellar mass. The results are consistent with a power-law increase to SF-galaxy number density 6.2 down to our low stellar mass limit of ∼ 10 M0. No deviation from the high-mass version of the surface brightness – mass relation is found in the dwarf mass regime. These findings imply 6.2 no truncation to galaxy formation processes at least down to ∼ 10 M .

Item Type: Article
Uncontrolled Keywords: astro-ph.GA; astro-ph.GA; astro-ph.CO
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Divisions: Astrophysics Research Institute
Publisher: Cambridge University Press
Related URLs:
Date Deposited: 12 Sep 2019 09:46
Last Modified: 13 Sep 2019 11:45
URI: http://researchonline.ljmu.ac.uk/id/eprint/11330

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