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Advances in Astronomy
Volume 2016, Article ID 2967813, 13 pages
http://dx.doi.org/10.1155/2016/2967813
Review Article

Gamma-Ray Bursts: A Radio Perspective

National Centre for Radio Astrophysics, Tata Institute of Fundamental Research, Pune University Campus, P.O. Box 3, Pune 411007, India

Received 13 July 2016; Revised 28 September 2016; Accepted 10 October 2016

Academic Editor: WeiKang Zheng

Copyright © 2016 Poonam Chandra. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Gamma-ray bursts (GRBs) are extremely energetic events at cosmological distances. They provide unique laboratory to investigate fundamental physical processes under extreme conditions. Due to extreme luminosities, GRBs are detectable at very high redshifts and potential tracers of cosmic star formation rate at early epoch. While the launch of Swift and Fermi has increased our understanding of GRBs tremendously, many new questions have opened up. Radio observations of GRBs uniquely probe the energetics and environments of the explosion. However, currently only 30% of the bursts are detected in radio bands. Radio observations with upcoming sensitive telescopes will potentially increase the sample size significantly and allow one to follow the individual bursts for a much longer duration and be able to answer some of the important issues related to true calorimetry, reverse shock emission, and environments around the massive stars exploding as GRBs in the early Universe.