The Jet and the Supernova in GRB 990712
Open Access
- 10 May 2001
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 552 (2) , L121-L124
- https://doi.org/10.1086/320328
Abstract
The optical light curve of the afterglow following the gamma-ray burst GRB 990712 is reexamined. Recently published polarization measurements of that source require a collimated outflow geometry that in turn predicts a break in the light curve. We show that the V-band light curve is consistent with such a break and that the postbreak light-curve evolution is dominated by a supernova contribution.Keywords
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