GRB Spectral Hardness and Afterglow Properties

Details GRB Spectral Hardness and Afterglow Properties GRB Spectral Hardness and Afterglow Properties

2000-01-19

arxiv.org/abs/astro-ph/0001339v1

Astronomy and Astrophysics

Astrophysics

5 pages, 3 figures, presented at the 5th Huntsville Gamma-Ray Burst Symposium

Scientific paper

10.1063/1.1361570

A possible relationship between the presence of a radio afterglow and gamma-ray burst spectral hardness is discussed. The correlation is marginally significant; the spectral hardness of the bursts with radio afterglows apparently results from a combination of the break energy Ebreak and the high-energy spectral index beta. If valid, this relationship would indicate that the afterglow does carry information pertaining to the GRB central engine.

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