Astron. Astrophys. Suppl. Ser. 138, 485-486
light curves of GRB 970508 optical remnant and magnitudes of underlying host galaxy
S.V. Zharikov and V.V. Sokolov
Send offprint request: S.V. Zharikov, e-mail: email@example.com
Special Astrophysical Observatory of R.A.S, Karachai-Cherkessia, Nizhnij Arkhyz,
Received December 29, 1998; accepted March 23, 1999
The observations with the SAO-RAS 6-m telescope in July-August 1998
show that the GRB 970508 optical remnant has varied very little since November 1997.
We can conclude that we observe a proper host galaxy
without a GRB optical remnant.
The fitting results of the light curve of the GRB remnant
plus the host galaxy until
about 400 days after the primary event are reported here.
The best -fits with a power law, for most of the filters used, are not
acceptable. Some intrinsic variability of the GRB optical remnant fading is
possible, which demands a more complex law presenting
the largest multiband homogeneous data set from a single telescope.
Key words: gamma-rays: bursts -- galaxies: photometry
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