SIMBAD references

2020MNRAS.495.2458M - Mon. Not. R. Astron. Soc., 495, 2458-2474 (2020/June-3)

A roadmap to hadronic supercriticalities: a comprehensive study of the parameter space for high-energy astrophysical sources.

MASTICHIADIS A., FLOROU I., KEFALA E., BOULA S.S. and PETROPOULOU M.

Abstract (from CDS):

Hadronic supercriticalities are radiative instabilities that appear when large amounts of energy are stored in relativistic protons. When the proton energy density exceeds some critical value, a runaway process is initiated resulting in the explosive transfer of the proton energy into electron-positron pairs and radiation. The runaway also leads to an increase of the radiative efficiency, namely the ratio of the photon luminosity to the injected proton luminosity. We perform a comprehensive study of the parameter space by investigating the onset of hadronic supercriticalities for a wide range of source parameters (i.e. magnetic field strengths of 1 G-100 kG and radii of 1011-1016 cm) and maximum proton Lorentz factors (103-109). We show that supercriticalities are possible for the whole range of source parameters related to compact astrophysical sources, like gamma-ray bursts and cores and jets of active galactic nuclei. We also provide an in-depth look at the physical mechanisms of hadronic supercriticalities and show that magnetized relativistic plasmas are excellent examples of non-linear dynamical systems in high-energy astrophysics.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): instabilities - radiation mechanisms: non-thermal - gamma-ray burst: general - galaxies: active

Simbad objects: 2

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2021.02.26-04:47:10

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