High-energy Emission from Interacting Supernovae: New Constraints on Cosmic-Ray Acceleration in Dense Circumstellar Environments
Autor: | Raffaella Margutti, John F. Beacom, Kohta Murase, Keiichi Maeda, A. Franckowiak |
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Rok vydání: | 2019 |
Předmět: |
velocity
010504 meteorology & atmospheric sciences Astrophysics::High Energy Astrophysical Phenomena FOS: Physical sciences Cosmic ray Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics 7. Clean energy 01 natural sciences GLAST X-ray High Energy Physics - Phenomenology (hep-ph) energy [cosmic radiation] supernova 0103 physical sciences electromagnetic [cascade] 010303 astronomy & astrophysics Solar and Stellar Astrophysics (astro-ph.SR) attenuation Astrophysics::Galaxy Astrophysics 0105 earth and related environmental sciences High Energy Astrophysical Phenomena (astro-ph.HE) Astroparticle physics Physics radio wave strong interaction Gamma ray Astronomy and Astrophysics dissipation Radiation zone High Energy Physics - Phenomenology Supernova Astrophysics - Solar and Stellar Astrophysics gamma ray energy [neutrino] 13. Climate action Space and Planetary Science ddc:520 galaxy [cosmic radiation] time dependence acceleration [cosmic radiation] Neutrino Astrophysics - High Energy Astrophysical Phenomena shock waves [acceleration] Fermi Gamma-ray Space Telescope Radio wave |
Zdroj: | The astrophysical journal / 1 874(1), 80-(2019). doi:10.3847/1538-4357/ab0422 |
ISSN: | 1538-4357 |
DOI: | 10.3847/1538-4357/ab0422 |
Popis: | 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 Ib/IIn 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 16 pages, 10 figures, 3 tables, accepted for publication in ApJ. Results and conclusions unchanged |
Databáze: | OpenAIRE |
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