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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 | Affiliation: | 3,4), 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 | Abstract: | 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. | Source: | arXiv, astro-ph/0109287 | Services: | Forum | Review | PDF | Favorites |
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