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X-rays, γ-rays and neutrinos from collisionless shocks in supernova wind breakouts

Published online by Cambridge University Press:  05 September 2012

Boaz Katz ,
Nir Sapir  and
Eli Waxman
Boaz Katz
Affiliation:
Institute for Advanced Study, Princeton, NJ 08540, USA email: boazka@ias.edu
Nir Sapir
Affiliation:
Dept. of Particle Phys. & Astrophys., Weizmann Institute of Science, Rehovot 76100, Israel email: nir.sapir@weizmann.ac.il email: eli.waxman@weizmann.ac.il
Eli Waxman
Affiliation:
Dept. of Particle Phys. & Astrophys., Weizmann Institute of Science, Rehovot 76100, Israel email: nir.sapir@weizmann.ac.il email: eli.waxman@weizmann.ac.il
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Abstract

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Some of the observed bursts of X-rays/Gamma-rays associated with supernovae (SNe) as well as very luminous SNe may result from the breakout of the SN shock from an optically thick wind surrounding the progenitor. We show that in such scenarios a collisionless shock necessarily forms during the shock breakout. An intense non-thermal flash of ≲1 MeV gamma rays, hard X-rays and multi-TeV neutrinos is produced simultaneously with and following the typical soft X-ray breakout emission, carrying similar or larger energy than the soft emission. The non-thermal flash is detectable by current X-ray telescopes and may be detectable out to 10's of Mpc by km-scale neutrino telescopes.

Keywords

(stars:) supernovae: generalshock wavesradiation mechanisms: nonthermal
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S279: Death of Massive Stars: Supernovae and Gamma-Ray Bursts , April 2011 , pp. 274 - 281
Copyright
Copyright © International Astronomical Union 2012

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