The supernova associated with GRB 020405

Abstract

We use the very simple and successful Cannonball (CB) model of gamma ray bursts (GRBs) and their afterglows (AGs) to analyze the observations of the mildly extinct optical AG of the relatively nearby GRB 020405. We show that GRB 020405 was associated with a 1998bw-like supernova (SN) at the GRB's redshift that appeared dimmer and redder than SN1998bw because of extinction in the host and our Galaxy. The case for the SN/GRB association --advocated in the CB model-- is becoming indubitable. We discuss the extent to which the GRB/SN connection is model-dependent.

Accepted for publication in A&A Letters

References in corpus (10)

• Afterglow lightcurves, viewing angle and the jet structure of gamma-ray bursts
• Off-Axis Afterglow Emission from Jetted Gamma-Ray Bursts
• Gamma-ray burst beaming: a universal configuration with a standard energy reservoir?
• Detection of a supernova signature associated with GRB 011121
• On the optical and X-ray afterglows of gamma ray bursts
• Variable Stars in the Fornax Dwarf Galaxy
• The optical afterglow of GRB 000911: evidence for an associated supernova?
• The Host Galaxy and Optical Light Curve of the Gamma-Ray Burst GRB 980703
• The Jet and the Supernova in GRB990712
• Is there a 1998bw-like supernova in the afterglow of gamma ray burst 011121?

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