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Optical Bumps in Cosmological GRBs as Supernovae

Published online by Cambridge University Press:  19 September 2016

J.S. Bloom
J.S. Bloom*
Affiliation:
Harvard-Smithsonian Center for Astrophysics, MC 20, 60 Garden Street, Cambridge, MA 02138, USA; [email protected] Harvard Society of Fellows, 78 Mount Auburn Street, Cambridge, MA 02138, USA

Summary

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From both photometric and broadband spectral monitoring of γ-ray burst (GRB) lightcurve “bumps,” particularly in GRB 011121, a strong case grew for a supernova (SN) origin. The GRB-SN connection was finally solidified beyond a reasonable doubt with the discovery that the bump in GRB 030329 was spectroscopically similar to a bright Type Ic SN. In light of this result, I re-assess the previous SN bump claims and conclude that: 1) the distribution of GRB-SN bump peak magnitudes is consistent with the local Type Ib/c SNe peak distribution and 2) the late-time bumps in all long-duration GRBs are likely supernovae.

Type
Part VI Supernova and Gamma-Ray Burst Connections
Information
International Astronomical Union Colloquium , Volume 192: Cosmic Explosions , 2005 , pp. 411 - 415
Copyright
Copyright © Springer-Verlag 2005

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