Diffusive Shock Acceleration at Oblique High Mach Number Shocks
نویسندگان
چکیده
The current paradigm of cosmic ray (CR) origin states that the most part galactic CRs is produced by supernova remnants. interaction ejecta with interstellar medium after supernova's explosions results in shocks responsible for CR acceleration via diffusive shock (DSA). We use particle-in-cell (PIC) simulations and a combined PIC-magnetohydrodynamic (PIC-MHD) technique to investigate whether DSA can occur oblique high Mach number shocks. Using PIC method, we follow formation determine fraction particles gets involved DSA. Then, this result, PIC-MHD model large-scale structure plasma magnetic field surrounding find out or not reflected generate upstream turbulence trigger feasibility process depends strongly on Alfvenic number, more likely triggered at
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2022
ISSN: ['2041-8213', '2041-8205']
DOI: https://doi.org/10.3847/1538-4357/ac5962