Bibcode
DOI
Ferrero, P.; Sanchez, S. F.; Kann, D. A.; Klose, S.; Greiner, J.; Gorosabel, J.; Hartmann, D. H.; Henden, A. A.; Møller, P.; Palazzi, E.; Rau, A.; Stecklum, B.; Castro-Tirado, A. J.; Fynbo, J. P. U.; Hjorth, J.; Jakobsson, P.; Kouveliotou, C.; Masetti, N.; Pian, E.; Tanvir, N. R.; Wijers, R. A. M. J.
Referencia bibliográfica
The Astronomical Journal, Volume 134, Issue 6, pp. 2118-2123 (2007).
Fecha de publicación:
12
2007
Número de citas
22
Número de citas referidas
20
Descripción
We report early follow-up observations of the error box of the short
burst GRB 050813 using the telescopes at Calar Alto and Observatorio
Sierra Nevada, followed by deep VLT FORS2 I-band observations obtained
under very good seeing conditions 5.7 and 11.7 days after the event.
Neither a fading afterglow nor a rising SN component was found, so the
potential GRB host galaxy has not been identified based on a comparison
of the two VLT images taken at different epochs. We discuss whether any
of the galaxies present in the original 10″ XRT error circle could
be the host. In any case, the optical afterglow of GRB 050813 was of
very low luminosity. We conclude that all these properties are
consistent with the binary compact merger hypothesis for the progenitor
of GRB 050813.
Based on observations collected at the European Southern Observatory, La
Silla, and Paranal, Chile (ESO Program 075.D-0415), and on observations
taken at the German-Spanish Calar Alto Observatory and at IAA's
Observatorio de Sierra Nevada in Spain.