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Evidence Against an Association Between Gamma-Ray Bursts and Type I Supernovae

C. Graziani·D. Q. Lamb·G. H. Marion
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Abstract

We use a rigorous method, based on Bayesian inference, for calculating the odds favoring the hypothesis that any particular class of astronomical transients produce gamma-ray bursts over the hypothesis that they do not. We then apply this method to a sample of 83 Type Ia supernovae and a sample of 20 Type Ib-Ic supernovae. We find overwhelming odds against the hypothesis that all Type Ia supernovae produce gamma-ray bursts, whether at low redshift ($10^{9}:1$) or high-redshift ($10^{12}:1$), and very large odds ($6000:1$) against the hypothesis that all Type Ib, Ib/c, and Ic supernovae produce observable gamma-ray bursts. We find large odds ($34:1$) against the hypothesis that a fraction of Type Ia supernovae produce observable gamma-ray bursts, and moderate odds ($6:1$) against the hypothesis that a fraction of Type Ib-Ic supernovae produce observable bursts.

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C. Graziani, D. Q. Lamb, G. H. Marion. 1999-09-01. Evidence Against an Association Between Gamma-Ray Bursts and Type I Supernovae. https://arxiv.org/abs/astro-ph/9909025

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