Preprint/Report

PUBDB-2019-00453

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png High-Energy Emission from Interacting Supernovae: New Constraints on Cosmic-Ray Acceleration in Dense Circumstellar Environments

Murase, K. (Corresponding author) ; Franckowiak, A.DESY* ; Maeda, K. ; Margutti, R. ; Beacom, J. F.

2019
Institute of Physics Publ. London

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Please use a persistent id in citations: doi:10.3847/1538-4357/ab0422  doi:10.3204/PUBDB-2019-00453

Report No.: arXiv:1807.01460

Abstract: Supernovae (SNe) with strong interactions with circumstellar material (CSM) are promising candidate sources of high-energy neutrinos and gamma rays, and have been suggested as an important contributor to Galactic cosmic rays beyond 1 PeV. Taking into account the shock dissipation by a fast velocity component of SN ejecta, we present comprehensive calculations of the non-thermal emission from SNe powered by shock interactions with a dense wind or CSM. Remarkably, we consider electromagnetic cascades in the radiation zone and subsequent attenuation in the pre-shock CSM. A new time-dependent phenomenological prescription provided by this work enables us to calculate gamma-ray, hard X-ray, radio, and neutrino signals, which originate from cosmic rays accelerated by the diffusive shock acceleration mechanism. We apply our results to SN IIn 2010jl and SN Ibn 2014C, for which the model parameters can be determined from the multi-wavelength data. For SN 2010jl, the more promising case, by using the the latest Fermi Large Area Telescope (LAT) Pass 8 data release, we derive new constraints on the cosmic-ray energy fraction, <0.05-0.1. We also find that the late-time radio data of these interacting SNe are consistent with our model. Further multi-messenger and multi-wavelength observations of nearby interacting SNe should give us new insights into the diffusive shock acceleration in dense environments as well as pre-SN mass-loss mechanisms.

Keyword(s): acceleration: shock waves ; cosmic radiation: acceleration ; cosmic radiation: galaxy ; cosmic radiation: energy ; cascade: electromagnetic ; supernova ; radio wave ; gamma ray ; strong interaction ; time dependence ; attenuation ; dissipation ; velocity ; X-ray ; GLAST ; neutrino: energy

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Contributing Institute(s):

1. Neutrinoteleskop (ZEU-ICE)

Research Program(s):

1. 613 - Matter and Radiation from the Universe (POF3-613) (POF3-613)

Experiment(s):

1. IceCube South Pole Neutrino Observatory

Appears in the scientific report 2018

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Database coverage:
; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF >= 5 ; Published ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Report/Journal Article Murase, K. ; Franckowiak, A.DESY* ; Maeda, K. ; Margutti, R. ; Beacom, J. F.
High-Energy Emission from Interacting Supernovae: New Constraints on Cosmic-Ray Acceleration in Dense Circumstellar Environments
The astrophysical journal / 1 874(1), 80 - (2019) [10.3847/1538-4357/ab0422]2019     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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