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GAMMA-RAY BURST OPTICAL AFTERGLOW OBSERVATIONS AT NYRöLä OBSERVATORY

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Arto Oksanen

Harri Hyvönen

Marko Moilanen

Jyväskylän Sirius ry

Kyllikinkatu 1

FIN-40100 Jyväskylä

Finland

Presented at the 90th Annual Meeting of the AAVSO, November 3, 2001

Abstract

We present the results of observing five gamma-ray burst (GRB) localizations (GRB 000926, GRB 010119, GRB 010222, GRB 000324, and GRB 010412) at Nyrölä Observatory, Finland. Two optical afterglows were successfully detected. Also, the equipment and methods used for the observations are presented. Our example shows how dedicated amateur astronomers with modest equipment can make a significant contribution to GRB research.

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