Groot, P. J. and Galama, T. J. and van Paradijs, J. and Kouveliotou, C. and Wijers, R. A. M. J. and Bloom, J. and Tanvir, N. and Vanderspek, R. and Greiner, J. and Castro-Tirado, A. J. and Gorosabel, J. and von Hippel, T. and Lehnert, M. and Kuijken, K. and Hoekstra, H. and Metcalfe, N. and Howk, C. and Conselice, C. and Telting, J. and Rutten, R. G. M. and Rhoads, J. and Cole, A. and Pisano, D. J. and Naber, R. and Schwarz, R. (1998) A Search for Optical Afterglow from GRB 970828. Astrophysical Journal, 493 (1). L27-L30. ISSN 0004-637X. doi:10.1086/311125. https://resolver.caltech.edu/CaltechAUTHORS:20170408-162759291
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Abstract
We report on the results of R-band observations of the error box of the γ-ray burst of 1997 August 28 made between 4 hr and 8 days after this burst occurred. No counterpart was found varying by more than 0.2 mag down to R=23.8. We discuss the consequences of this nondetection for relativistic blast wave models of γ-ray bursts and the possible effect of redshift on the relation between optical absorption and the low-energy cutoff in the X-ray afterglow spectrum.
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| Additional Information: | © 1998. The American Astronomical Society. Received 1997 September 10; accepted 1997 November 13; published 1998 January 6. We thank the RXTE ASM and PCA teams for their very fast response to and communications regarding the γ-ray burst of 1997 August 28. We thank B. Paczyński and W. Lewin for enlightening discussions on the importance of redshift for absorption of optical afterglows. T. J. G. is supported by NFRA under grant 781.76.011. J. G. and R. S. are supported by the Deutsche Agentur für Raumfahrtangelegenheiten (DARA) GmbH under contract FKZ 50 QQ 9602 3 and 50 OR 9206 8, respectively. | ||||||||||||||||
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| Subject Keywords: | dust, extinction; galaxies: general; gamma rays: bursts; gamma rays: observations; radiation mechanisms: non-thermal | ||||||||||||||||
| Issue or Number: | 1 | ||||||||||||||||
| DOI: | 10.1086/311125 | ||||||||||||||||
| Record Number: | CaltechAUTHORS:20170408-162759291 | ||||||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20170408-162759291 | ||||||||||||||||
| Official Citation: | P. J. Groot et al 1998 ApJ 493 L27 | ||||||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||
| ID Code: | 76190 | ||||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||||
| Deposited By: | 1Science Import | ||||||||||||||||
| Deposited On: | 09 Aug 2017 23:36 | ||||||||||||||||
| Last Modified: | 15 Nov 2021 16:58 |
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