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Constraints on an Optical Afterglow and on Supernova Light Following the Short Burst GRB 050813

Ferrero, P. and Sánchez, S. F. and Kann, D. A. and Klose, S. and Greiner, J. and Gorosabel, J. and Hartmann, D. H. and Henden, A. A. and Møller, P. and Palazzi, E. and Rau, A. and Stecklum, B. and Castro-Tirado, A. J. and Fynbo, J. P. U. and Hjorth, J. and Jakobsson, P. and Kouveliotou, C. and Masetti, N. and Pian, E. and Tanvir, N. R. and Wijers, R. A. M. J. (2007) Constraints on an Optical Afterglow and on Supernova Light Following the Short Burst GRB 050813. Astronomical Journal, 134 (6). pp. 2118-2123. ISSN 0004-6256. doi:10.1086/522793.

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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.

Item Type:Article
Related URLs:
URLURL TypeDescription
Kann, D. A.0000-0003-2902-3583
Rau, A.0000-0001-5990-6243
Fynbo, J. P. U.0000-0002-8149-8298
Hjorth, J.0000-0002-4571-2306
Kouveliotou, C.0000-0003-1443-593X
Masetti, N.0000-0001-9487-7740
Additional Information:© 2007 The American Astronomical Society. Received 2006 October 9; accepted 2007 August 25. We thank the staff at ESO/Paranal, in particular C. Dumas, P. D. Lynam, P. Gandhi, N. Hue´lamo, and E. Jehin, for performing the observations and for additional efforts related to that. We thank the CAHA and OSN staff for excellent support during some of the observations presented here. P. F., D. A. K., and S. K. acknowledge financial support from DFG grant Kl 766/13-2 and from the German Academic Exchange Service (DAAD) under grant D/05/54048. The research activity of J. G. is supported by the Spanish Ministry of Science through projects AYA 2004- 01515 and ESP 2005-07714-C03-03. We thank the second referee for a rapid reply and a constructive report.
Funding AgencyGrant Number
Deutsche Forschungsgemeinschaft (DFG)Kl 766/13-2
Deutscher Akademischer Austauschdienst (DAAD)D/05/54048
Ministerio de Ciencia e Innovación (MCINN)AYA 2004-01515
Ministerio de Ciencia e Innovación (MCINN)ESP 2005-07714-C03-03
Subject Keywords:gamma rays : observations; supernovae : general
Issue or Number:6
Record Number:CaltechAUTHORS:20100112-111444951
Persistent URL:
Official Citation:Constraints on an Optical Afterglow and on Supernova Light Following the Short Burst GRB 050813 P. Ferrero, S. F. Sanchez, D. A. Kann, S. Klose, J. Greiner, J. Gorosabel, D. H. Hartmann, A. A. Henden, P. Møller, E. Palazzi, A. Rau, B. Stecklum, A. J. Castro-Tirado, J. P. U. Fynbo, J. Hjorth, P. Jakobsson, C. Kouveliotou, N. Masetti, E. Pian, N. R. Tanvir, and R. A. M. J. Wijers 2007 The Astronomical Journal 134 2118-2123 doi: 10.1086/522793
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:17145
Deposited By: Tony Diaz
Deposited On:12 Jan 2010 23:09
Last Modified:08 Nov 2021 23:33

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