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29 March 2024
 
  » arxiv » astro-ph/0109287

 Article overview


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 ; L. Stella ;
Date 18 Sep 2001
Subject astro-ph
Affiliation3,4), E. Berger , S. Kulkarni , E. Ramirez-Ruiz , A. Cimatti , M. Della Valle , S. di Serego Alighieri , A. Celotti , F. Haardt , G. L. Israel, L. Stella ( IoA Cambridge; OA Brera; Caltech; Mount Stromlo Observatory; OA Arcetri; Sissa; Univ. In
AbstractWe 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.
Source arXiv, astro-ph/0109287
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