GRB Spectral Hardness and Afterglow Properties
classification
🌌 astro-ph
keywords
spectralafterglowhardnessradiorelationshipafterglowsapparentlybeta
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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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