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Archival search for recurrent activity at the position the gamma-ray burst GRB 970228 optical counterpart

Javier Gorosabel·Alberto J. Castro-Tirado
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Abstract

We have examined 8004 plates at the Harvard College Observatory Plate Collection searching for optical transient emission from the gamma-ray burst GRB 970228. This is the first archival search carried out so far for a gamma-ray burst with known transient optical emission. The total exposure time amounts to ~1.1 yr. No convincing optical activity was found above 12.5 mag at the expected position of the GRB 970228 optical counterpart.

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Javier Gorosabel, Alberto J. Castro-Tirado. 1998-02-18. Archival search for recurrent activity at the position the gamma-ray burst GRB 970228 optical counterpart. https://arxiv.org/abs/astro-ph/9802237

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