Kavli Affiliate: Naoki Yasuda
| First 5 Authors: Zhuoxi Liang, Nao Suzuki, Mamoru Doi, Masayuki Tanaka, Naoki Yasuda
| Summary:
We present the luminosity functions and stellar mass functions of supernova
(SN) host galaxies and test if they differ from the functions of normal field
galaxies. We utilize homogeneous samples consisting of 273 SNe Ia ($zleq0.3$)
and 44 core-collapse (CC) SNe ($z leq 0.1$) from the Sloan Digital Sky Survey
(SDSS) II Supernova Survey and the high-signal-to-noise-ratio photometry of
galaxies from the Hyper Suprime-Cam Subaru Strategic Program (HSC SSP). SN
hosts are classified into star-forming and passive galaxy groups based on the
spectral energy distribution (SED) fitting. We find that the SN host luminosity
functions and stellar mass functions deviate from those of normal field
galaxies. Star-forming galaxies dominate the low-mass end of the SN Ia host
mass function, while passive galaxies dominate the high-mass end. CC SNe are
predominantly hosted by star-forming galaxies. In addition, intermediate-mass
hosts produce CC SNe with the highest efficiency, while the efficiency of
producing SNe Ia monotonically increases as the hosts become more massive.
Furthermore, We derive the pseudo mass normalized SN rates (pSNuM) based on the
mass functions. We find that the star-forming component of pSNuM$_{Ia}$ is less
sensitive to the changes in stellar mass, in comparison with the total rate.
The behavior of pSNuM$_{CC}$ suggests that the CC rate is proportional to the
star-forming rate.
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