Effects of electron-positron pairs on accretion flows

Details Effects of electron-positron pairs on accretion flows Effects of electron-positron pairs on accretion flows

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...340..203t&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 340, May 1, 1989, p. 203-215.

Astronomy and Astrophysics

Astronomy

25

Accretion Disks, Active Galactic Nuclei, Black Holes (Astronomy), Electron-Positron Pairs, Pair Production, Astronomical Models, Compton Effect, Temperature Distribution

Scientific paper

Consideration is given to the effects of thermal and nonthermal electron-positron pair production upon the structure of two-temperature accretion disks and upon the two-temperature criterion in quasi-spherical accretion flows, by balancing pair creation with annihilation and inflow. It is found that thermal pair creation is unimportant in both the disk and the quasi-spherical flows for reasonable values of parameters consistent with the observed spectra of active galactic nuclei. However, pairs produced nonthermally can overwhelm ions and significantly alter the flow structure for a wide range of parameter values.

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