The evolution of active galactic nuclei. III - The effects of relativistic particles on the intercloud medium

Details The evolution of active galactic nuclei. III - The effects of relativistic particles on the intercloud medium The evolution of active galactic nuclei. III - The effects of relativistic particles on the intercloud medium

Nov 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...346..618d&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 346, Nov. 15, 1989, p. 618-628.

Astronomy and Astrophysics

Astronomy

11

Active Galactic Nuclei, Black Holes (Astronomy), Galactic Evolution, Relativistic Particles, Stellar Systems, Astronomical Models, Luminosity, Particle Acceleration, Quasars, Red Shift, Temperature Distribution

Scientific paper

Numerical simulations of active galactic nuclei (AGNs) are considered. Self-consistent models account for the dynamic evolution of the dense stellar system in a galactic nucleus, the mass-loss rate from the stellar system, the flow profile of the intercloud medium, and the fueling and luminosity of the central black hole. More accurate analysis of the effects of relativistic particle heating on the structure and evolution of the intercloud medium is performed by associating both a photon and a relativistic particle efficiency with the central black hole. The intercloud medium can be heated to a temperature greater than the Compton equilibrium temperature (10 to the 8th K), if only 12 percent of the total energy produced in an active nucleus emerges as relativistic particles. All models develop a partial wind phase near peak luminosity and have pure accretion flows at early and late times when the central luminosity is small. The mechanical power in the wind at peak luminosity is increased from 2 x 10 to the 39th ergs/sec in models without relativistic particle heating to 10 to the 42nd ergs/sec in models with equal relativistic particle and photon luminosities.

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