Implications of the visible and X-ray counterparts to GRB 970228

J. I. Katz, T. Piran, R. Sari

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


We propose that the visible and x-ray emission associated with the cosmic gamma-ray burst GRB 970228 but following it by hours and days was produced by a weaker continuation of the processes which produced the gamma-ray burst itself. This hypothesis predicts an instantaneous spectrum Fυ∞υ−1/2, resulting from radiative cooling of synchrotron-emitting electrons, at frequencies from the infrared to x rays and higher. The limited data support this prediction.

Original languageAmerican English
Pages (from-to)1580-1581
Number of pages2
JournalPhysical Review Letters
Issue number8
StatePublished - 23 Feb 1998


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