Saturated pair-photon cascades on isotropic background photons
1988; IOP Publishing; Volume: 335; Linguagem: Inglês
10.1086/166967
ISSN1538-4357
Autores Tópico(s)Gamma-ray bursts and supernovae
Resumoview Abstract Citations (125) References (28) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Saturated Pair-Photon Cascades on Isotropic Background Photons Zdziarski, Andrzej A. Abstract The problem of high-energy gamma-rays and electrons entering an isotropic background radiation field is considered. The gamma-rays produce electron-positron pairs by photon-photon interactions with the background photons, and the electrons Compton upscatter the background photons, giving rise to a pair-photon cascade. The Compton interactions are in the quantum Klein-Nishina regime. The spectra of the secondary produced gamma-rays are obtained in the case of large optical depths of the radiation field by solving a kinetic equation of the cascade. This process can be important for the early universe, gamma-ray bursts, jets, active galactic nuclei, and ultra-high-energy gamma-rays and electrons crossing the cosmic microwave background. Publication: The Astrophysical Journal Pub Date: December 1988 DOI: 10.1086/166967 Bibcode: 1988ApJ...335..786Z Keywords: Background Radiation; Electron Photon Cascades; Electron-Positron Pairs; Elementary Particles; Gamma Ray Spectra; Black Body Radiation; Compton Effect; Electron Scattering; Radiation Distribution; Space Radiation; ELEMENTARY PARTICLES; GAMMA RAYS: GENERAL; RADIATION MECHANISMS full text sources ADS | Related Materials (1) Erratum: 1989ApJ...342.1212Z
Referência(s)