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
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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