TY - JOUR
T1 - The Radio luminosity-risetime function of core-collapse supernovae
AU - Bietenholz, M. F.
AU - Bartel, N.
AU - Argo, M.
AU - Dua, R.
AU - Ryder, S.
AU - Soderberg, A.
PY - 2021/2/15
Y1 - 2021/2/15
N2 - We assemble a large set of 2-10 GHz radio flux density measurements and upper limits of 294 different supernovae (SNe), from the literature and our own and archival data. Only 31% of SNe were detected. We characterize the SN radio lightcurves near the peak using a two-parameter model, with tpk being the time to rise to a peak and Lpk the spectral luminosity at that peak. Over all SNe in our sample at D < 100 Mpc, we find that tpk = 101.7±0.9 days and that Lpk = 1025.5±1.6 erg s-1 Hz-1, and therefore that generally 50% of SNe will have Lpk < 1025.5 erg s-1 Hz-1. These Lpk values are ∼30 times lower than those for only detected SNe. Types Ib/c and II (excluding IIn's) have similar mean values of Lpk but the former have a wider range, whereas Type IIn SNe have ∼10 times higher values with Lpk = 1026.5±1.1 erg s-1 Hz-1. As for tpk, Type Ib/c have tpk of only 101.1±0.5 days while Type II have tpk = 101.6±1.0 and Type IIn the longest timescales with tpk = 103.1±0.7 days. We also estimate the distribution of progenitor mass-loss rates, Ṁ, and find that the mean and standard deviation of log10(Ṁ/[M⊙yr-1]) are -5.4 ± 1.2 (assuming vwind = 1000 km s-1) for Type Ib/c SNe, and -6.9 ± 1.4 (assuming vwind = 10 km s-1) for Type II SNe excluding Type IIn.
AB - We assemble a large set of 2-10 GHz radio flux density measurements and upper limits of 294 different supernovae (SNe), from the literature and our own and archival data. Only 31% of SNe were detected. We characterize the SN radio lightcurves near the peak using a two-parameter model, with tpk being the time to rise to a peak and Lpk the spectral luminosity at that peak. Over all SNe in our sample at D < 100 Mpc, we find that tpk = 101.7±0.9 days and that Lpk = 1025.5±1.6 erg s-1 Hz-1, and therefore that generally 50% of SNe will have Lpk < 1025.5 erg s-1 Hz-1. These Lpk values are ∼30 times lower than those for only detected SNe. Types Ib/c and II (excluding IIn's) have similar mean values of Lpk but the former have a wider range, whereas Type IIn SNe have ∼10 times higher values with Lpk = 1026.5±1.1 erg s-1 Hz-1. As for tpk, Type Ib/c have tpk of only 101.1±0.5 days while Type II have tpk = 101.6±1.0 and Type IIn the longest timescales with tpk = 103.1±0.7 days. We also estimate the distribution of progenitor mass-loss rates, Ṁ, and find that the mean and standard deviation of log10(Ṁ/[M⊙yr-1]) are -5.4 ± 1.2 (assuming vwind = 1000 km s-1) for Type Ib/c SNe, and -6.9 ± 1.4 (assuming vwind = 10 km s-1) for Type II SNe excluding Type IIn.
UR - http://www.scopus.com/inward/record.url?scp=85101495571&partnerID=8YFLogxK
U2 - 10.3847/1538-4357/abccd9
DO - 10.3847/1538-4357/abccd9
M3 - Article
AN - SCOPUS:85101495571
SN - 0004-637X
VL - 908
SP - 1
EP - 24
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 1
M1 - 75
ER -