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Astron. Astrophys. Suppl. Ser. 138, 591-592

Real-time and pre-burst optical data for GRBs

R. Hudec1 - Z. Ceplecha1 - P. Spurný1 - J. Florián1 - A. Kolár1 - J. Bocek1 - J. Borovicka1 - P. Kroll2

Send offprint request: R. Hudec

1 - Astronomical Institute, CZ-251 65 Ondrejov, Czech Republic
2 - Sonneberg Observatory, Sonneberg, Germany

Received January 21; accepted May 10, 1999


The photographic sky patrols still represent a unique database for investigations of positions of GRBs at the times just before, during and after the gamma-ray triggers. We report on the use of two such patrols for these purposes.

Key words: gamma-ray bursts -- optical transients -- sky monitoring

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