Very high energy hadronic and leptonic emission from magnetic reconnection events around black hole accretion disks: numerical GRMHD radiative transfer-particle simulations
Abstract
The origin of the very high energy (VHE) emission around black hole sources is still not understood. We here present numerical simulations of the very high energy emission produced in the core region of black hole (BH) accretion disk systems. We first perform general relativistic magnetohydrodynamical (GRMHD) simulations of these systems and then we carry out radiative transfer calculations in order to obtain the density, magnetic, and photon fields of the environment. The obtained photon field is due to electron synchrotron and inverse Compton (IC) radiation, with the synchrotron component being the appropriate target for photo-hadronic interactions. Then, assuming that high energy protons are accelerated by magnetic reconnection in the background magnetic field, we compute photon fluxes stemming from proton interactions with the local photon and magnetic fields (using the CRPropa3 code). From the resulting gamma rays, we obtain the spectral energy distributions, and the IC emission. Finally, we discuss the possible constraints on BH accretion disk system processes based on their emission profiles.
- Publication:
-
42nd COSPAR Scientific Assembly
- Pub Date:
- July 2018
- Bibcode:
- 2018cosp...42E2883R