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The optical afterglow of GRB 000911: Evidence for an associated supernova?

Lazzati, D. and Covino, S. and Ghisellini, G. and Fugazza, D. and Campana, S. and Saracco, P. and Price, P. A. and Berger, E. and Kulkarni, S. and Ramirez-Ruiz, E. and Cimatti, A. and Della Valle, M. and di Serego Alighieri, S. and Celotti, A. and Haardt, F. and Israel, G. L. and Stella, L. (2001) The optical afterglow of GRB 000911: Evidence for an associated supernova? Astronomy & Astrophysics, 378 (3). pp. 996-1002. ISSN 0004-6361.

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We present photometric and spectroscopic observations of the late afterglow of GRB 000911, starting ~1 day after the burst event and lasting ~8 weeks. We detect a moderately significant re-brightening in the R, I and J lightcurves, associated with a sizable reddening of the spectrum. This can be explained through the presence of an underlying supernova, outshining the afterglow ~30 days after the burst event. Alternative explanations are discussed.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Lazzati, D.0000-0002-9190-662X
Berger, E.0000-0002-9392-9681
Kulkarni, S.0000-0001-5390-8563
Ramirez-Ruiz, E.0000-0003-2558-3102
Della Valle, M.0000-0003-3142-5020
di Serego Alighieri, S.0000-0001-8769-2692
Additional Information:© 2001 ESO. Received: 12 July 2001. Accepted: 12 September 2001. We thank the ESO-ANTU service team that performed the observations. We thank the ESO Director for the allocation of discretionary time for the spectral observations performed on day 36. This program was partially supported through ASI grants. SRK thanks NSF and NASA for supporting a program of GRB investigations at Caltech.
Funding AgencyGrant Number
Agenzia Spaziale Italiana (ASI)UNSPECIFIED
Subject Keywords:gamma rays: bursts - supernovae: general
Issue or Number:3
Record Number:CaltechAUTHORS:20180226-081547023
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Official Citation:The optical afterglow of GRB 000911: Evidence for an associated supernova? D. Lazzati, S. Covino, G. Ghisellini, D. Fugazza, S. Campana, P. Saracco, P. A. Price, E. Berger, S. Kulkarni, E. Ramirez-Ruiz, A. Cimatti, M. Della Valle, S. di Serego Alighieri, A. Celotti, F. Haardt, G. L. Israel and L. Stella A&A, 378 3 (2001) 996-1002 DOI:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:84946
Deposited By: Ruth Sustaita
Deposited On:26 Feb 2018 19:29
Last Modified:09 Mar 2020 13:19

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