From core collapse to superluminous: The rates of massive stellar explosions from the Palomar Transient Factory

Autor: Chris Frohmaier, Avishay Gal-Yam, Mark Sullivan, S. B. Cenko, Shri Kulkarni, Nicholas M. Law, C. Angus, M. Vincenzi, Robert M. Quimby, M. Smith, Peter Nugent
Přispěvatelé: Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 500 (4), pp.5142-5158. ⟨10.1093/mnras/staa3607⟩
Frohmaier, C, Angus, C R, Vincenzi, M, Sullivan, M, Smith, M, Nugent, P E, Cenko, S B, Gal-Yam, A, Kulkarni, S R, Law, N M & Quimby, R M 2021, ' From core collapse to superluminous : the rates of massive stellar explosions from the Palomar Transient Factory ', Monthly Notices of the Royal Astronomical Society, vol. 500, no. 4, pp. 5142-5158 . https://doi.org/10.1093/mnras/staa3607
Monthly Notices of the Royal Astronomical Society, vol 500, iss 4
Frohmaier, C, Angus, C R, Vincenzi, M, Sullivan, M, Smith, M, Nugent, P E, Cenko, S B, Gal-Yam, A, Kulkarni, S R, Law, N M & Quimby, R M 2021, ' From core collapse to superluminous : the rates of massive stellar explosions from the Palomar Transient Factory ', Monthly Notices of the Royal Astronomical Society, vol. 500, no. 4, pp. 5142-5148 . https://doi.org/10.1093/mnras/staa3607
ISSN: 0035-8711
1365-2966
DOI: 10.1093/mnras/staa3607⟩
Popis: We present measurements of the local core collapse supernova (SN) rate using SN discoveries from the Palomar Transient Factory (PTF). We use a Monte Carlo simulation of hundreds of millions of SN light curve realizations coupled with the detailed PTF survey detection efficiencies to forward-model the SN rates in PTF. Using a sample of 86 core collapse SNe, including 26 stripped-envelope SNe (SESNe), we show that the overall core collapse SN volumetric rate is $r^\mathrm{CC}_v=9.10_{-1.27}^{+1.56}\times10^{-5}\,\text{SNe yr}^{-1}\,\text{Mpc}^{-3}\, h_{70}^{3}$ at $ \langle z \rangle = 0.028$, and the SESN volumetric rate is $r^\mathrm{SE}_v=2.41_{-0.64}^{+0.81}\times10^{-5}\, \text{SNe yr}^{-1}\,\text{Mpc}^{-3}\, h_{70}^{3}$. We further measure a volumetric rate for hydrogen-free superluminous SNe (SLSNe-I) using 8 events at $z{\le}0.2$ of $r^\mathrm{SLSN-I}_v=35_{-13}^{+25}\, \text{SNe yr}^{-1}\text{Gpc}^{-3}\, h_{70}^{3}$, which represents the most precise SLSN-I rate measurement to date. Using a simple cosmic star-formation history to adjust these volumetric rate measurements to the same redshift, we measure a local ratio of SLSN-I to SESN of $\sim1/810^{+1500}_{-94}$, and of SLSN-I to all CCSN types of $\sim 1/3500^{+2800}_{-720}$. However, using host galaxy stellar mass as a proxy for metallicity, we also show that this ratio is strongly metallicity dependent: in low-mass ($\mathrm{log} M_{*} < 9.5 \mathrm{M}_\odot$) galaxies, which are the only environments that host SLSN-I in our sample, we measure a SLSN-I to SESN fraction of $1/300^{+380}_{-170}$ and $1/1700^{+1800}_{-720}$ for all CCSN. We further investigate the SN rates a function of host galaxy stellar mass and show that the specific rates of all core collapse SNe decrease with increasing stellar mass.
17 pages, 10 figures, submitted to MNRAS
Databáze: OpenAIRE
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