Electron injection by relativistic protons in active galactic nuclei
1987; IOP Publishing; Volume: 320; Linguagem: Inglês
10.1086/184980
ISSN1538-4357
AutoresM. Sikora, J. G. Kirk, Mitchell C. Begelman, Peter Schneider,
Tópico(s)Gamma-ray bursts and supernovae
Resumoview Abstract Citations (121) References (21) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Electron Injection by Relativistic Protons in Active Galactic Nuclei Sikora, Marek ; Kirk, John G. ; Begelman, Mitchell C. ; Schneider, Peter Abstract The authors make the case that efficient acceleration of protons by strong shocks in active galactic nuclei will automatically channel most of the available energy into relativistic electrons and positrons. Thus, direct acceleration of electrons need not be efficient. It is shown that, for the most energetic protons likely to be accelerated in AGNs, p-p collisions are less important than collisions of protons with soft photons. Pairs produced by p-γ collisions in this scenario have much higher energies than the maximum energies attainable by Fermi acceleration of electrons. They are energetic enough to initiate and sustain a pair cascade even when synchrotron radiation is the primary cooling process. Publication: The Astrophysical Journal Pub Date: September 1987 DOI: 10.1086/184980 Bibcode: 1987ApJ...320L..81S Keywords: Active Galactic Nuclei; Black Holes (Astronomy); Nuclear Reactions; Particle Acceleration; Relativistic Particles; Shock Waves; Electron Acceleration; Energy Distribution; Gamma Rays; Lorentz Force; Pair Production; Particle Interactions; Astrophysics; BLACK HOLES; GALAXIES: NUCLEI; NUCLEAR REACTIONS; PARTICLE ACCELERATION; RADIATION MECHANISMS; SHOCK WAVES full text sources ADS |
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