Structure and spectra of electron-positron pair cascade atmospheres

Details Structure and spectra of electron-positron pair cascade atmospheres Structure and spectra of electron-positron pair cascade atmospheres

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aipc..254..311t&link_type=abstract

Testing the AGN paradigm. AIP Conference Proceedings, Volume 254, pp. 311-312 (1992).

Computer Science

Radiation Mechanisms, Polarization, Elementary Particle Processes

Scientific paper

The self-consistent spatial structure and radiation spectra of steady-state electron-positron pair cascade shower atmospheres surrounding AGN accretion flows are calculated, by developing computer codes to model geometry-dependent radiation transfer, including: Compton scattering, pair production, and pair annihilation. Disk and spherical accretion flow geometries are investigated, as well as a wide range of plausible primary accretion flow spectrum. It is found that substantial pair atmospheres can develop above accretion flows which emit even a modest fraction of their luminosity as gamma radiation. The radiation spectrum emitted by the flow can be significantly reprocessed during transit through the atmosphere, leading to observational constraints on model parameters.

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