SIMBAD references

2021ApJ...908...75B - Astrophys. J., 908, 75-75 (2021/February-2)

The radio luminosity-risetime function of core-collapse supernovae.


Abstract (from CDS):

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, {dot}M, and find that the mean and standard deviation of log10({dot}M/[Myr–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.

Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.

Journal keyword(s): Core-collapse supernovae - Radio transient sources

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 556

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