Particle Acceleration in (by) Accretion Discs

Details Particle Acceleration in (by) Accretion Discs Particle Acceleration in (by) Accretion Discs

1992-05-04

arxiv.org/abs/astro-ph/9205003v1

Astronomy and Astrophysics

Astrophysics

3 pages

Scientific paper

10.1063/1.42698

I present a model for acceleration of protons by the second-order Fermi process acting on randomly scrambled magnetic flux arches above an accretion disc. The accelerated protons collide with thermal protons in the disc, producing degraded energetic protons, charged and neutral pions, and neutrons. The pions produce gamma-rays by spontaneous decay of $\pi^0$ and by bremsstrahlung and Compton processes following the decay of $\pi^\pm$ to $e^\pm$.

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