July 29, 2015 to August 6, 2015
World Forum
Europe/Amsterdam timezone

Cosmic Ray Acceleration at Supernovae Occurring in Structured Environments

Aug 4, 2015, 4:00 PM
Amazon Foyer (World Forum)

Amazon Foyer

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Board: 198
Poster contribution CR-TH Poster 3 CR


Dr Gwenael Giacinti (University of Oxford, Clarendon Laboratory)


Progenitors of some supernovae (especially Type IIn) are expected to explode in circumstellar environments containing clumps, or shells from previous eruptions. We show that supernovae occurring in such structured environments must be able to accelerate cosmic rays (CR) to high or very-high energies. In this work, we present a detailed study of the maximum CR energy that can be reached in such systems, and we calculate the amount of energy (per supernova) that can be channelled into CRs. We study the dependence of our results on the parameters of the progenitor star, and on the parameters of the structures in the circumstellar medium. These high-energy CRs interact with the dense circumstellar gas and produce secondary high-energy neutrinos and gamma-rays. We compute the fluxes of gamma-rays and neutrinos that should be produced by supernovae exploding in such environments.
Registration number following "ICRC2015-I/" 623
Collaboration -- not specified --

Primary author

Dr Gwenael Giacinti (University of Oxford, Clarendon Laboratory)


Prof. Anthony R. Bell (University of Oxford, Clarendon Laboratory)

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