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.

The optical afterglow of GRB000911: evidence for an associated supernova? / Lazzati, D.; Covino, S.; Ghisellini, G.; Fugazza, D.; Campana, S.; Saracco, P.; Price, P. A.; Berger, E.; Kulkarni, S.; Ramirez-Ruiz, E.; Cimatti, A.; Della Valle, M.; Di Serego Alighieri, S.; Celotti, A.; Haardt, F.; Israel, G. L.; Stella, L.. - In: ASTRONOMY & ASTROPHYSICS. - ISSN 0004-6361. - 378:3(2001), pp. 996-1002. [10.1051/0004-6361:20011282]

The optical afterglow of GRB000911: evidence for an associated supernova?

Celotti A.;
2001-01-01

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.
2001
378
3
996
1002
Lazzati, D.; Covino, S.; Ghisellini, G.; Fugazza, D.; Campana, S.; Saracco, P.; Price, P. A.; Berger, E.; Kulkarni, S.; Ramirez-Ruiz, E.; Cimatti, A.; Della Valle, M.; Di Serego Alighieri, S.; Celotti, A.; Haardt, F.; Israel, G. L.; Stella, L.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11767/14608
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