6533b852fe1ef96bd12ab8ed

RESEARCH PRODUCT

Modeling particle acceleration and non-thermal emission in supernova remnants

Salvatore OrlandoMarco MiceliMarco MiceliFabrizio BocchinoOleh PetrukS. UstamujicE. GrecoE. GrecoGiovanni PeresGiovanni PeresA. TutoneA. Tutone

subject

Shock waveMagnetohydrodynamics (MHD)Radiation mechanisms: non-thermalElectromagnetic spectrumAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesCosmic rayAstrophysicsElectronRadiation01 natural sciencesShock wavesAcceleration0103 physical sciencesCosmic rays010303 astronomy & astrophysicsInstrumentationAstrophysics::Galaxy AstrophysicsISM: supernova remnantsPhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)010308 nuclear & particles physicsAstronomy and AstrophysicsParticle accelerationSupernovaSpace and Planetary SciencePhysics::Accelerator PhysicsAstrophysics - High Energy Astrophysical Phenomena

description

According to the most popular model for the origin of cosmic rays (CRs), supernova remnants (SNRs) are the site where CRs are accelerated. Observations across the electromagnetic spectrum support this picture through the detection of non-thermal emission that is compatible with being synchrotron or inverse Compton radiation from high energy electrons, or pion decay due to proton-proton interactions. These observations of growing quantity and quality promise to unveil many aspects of CRs acceleration and require more and more accurate tools for their interpretation. Here, we show how multi-dimensional MHD models of SNRs, including the effects on shock dynamics due to back-reaction of accelerated CRs and the synthesis of non-thermal emission, turned out to be very useful to investigate the signatures of CRs acceleration and to put constraints on the acceleration mechanism of high energy particles. These models have been used to interpret accurately observations of SNRs in various bands (radio, X-ray and $\gamma$-ray) and to extract from them key information about CRs acceleration.

yearjournalcountryeditionlanguage
2021-07-01
10.1016/j.newast.2020.101566http://arxiv.org/abs/2012.13394