| Issue |
EAS Publications Series
Volume 61, 2013
Gamma-ray Bursts: 15 Years of GRB Afterglows – Progenitors, Environments and Host Galaxies from the Nearby to the Early Universe
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|---|---|---|
| Page(s) | 367 - 369 | |
| Section | Chapter VIII: Progenitors and Environments | |
| DOI | https://doi.org/10.1051/eas/1361058 | |
| Published online | 22 July 2013 | |
A.J. Castro-Tirado, J.Gorosabel and I.H. Park (eds)
EAS Publications Series, 61 (2013) 367-369
Early UV/Optical Emission of The Type IB SN 2008D
Kavli Institute for the Physics and
Mathematics of the Universe, Todai Institutes for Advanced Study, University of Tokyo,
5-1-5 Kashiwanoha,
Kashiwa, Chiba
277-8583,
Japan
We propose an alternative explanation for the post-breakout emission of SN 2008D that cannot be reproduced by the explosion of a normal Wolf-Rayet star. We explored several physical scenarios and proposed that the early emission was enhanced by the presence of 56Ni in the outermost layers of the ejecta in addition to the usual internal distribution. This kind of double-peaked 56Ni distribution could be explained by the formation of jets during the explosion.
© EAS, EDP Sciences 2013