Evidence for a Supernova in the Ic Band Light Curve of the Optical Transient of GRB 970508

Details Evidence for a Supernova in the Ic Band Light Curve of the Optical Transient of GRB 970508 Evidence for a Supernova in the Ic Band Light Curve of the Optical Transient of GRB 970508

2001-02-28

arxiv.org/abs/astro-ph/0102492v1

Astronomy and Astrophysics

Astrophysics

3 pages, 2 figures, oral presentation on 2nd Rome Workshop on Gamma-Ray Bursts in the Afterglow Era

Scientific paper

10.1007/10853853_35

Unique data on $BVRI$ brightness curves of the OT of GRB 970508 obtained with the 6-m telescope have been interpreted in the framework of the GRB-SN (supernovae) connection. The effect must be maximal in the I_c band as OT GRB 970228. The peak absolute (M_B) magnitude of the suggested SN must be around -19.5 for the OT of GRB 970508. If all or the main part of long GRBs are associated with SNe, the GRB host galaxies (for ground-based observations, at least) must be dimmer than the peak magnitude of the SN.

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