The radiative deceleration of ultrarelativistic jets in active galactic nuclei

Details The radiative deceleration of ultrarelativistic jets in active galactic nuclei The radiative deceleration of ultrarelativistic jets in active galactic nuclei

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...340..162m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 340, May 1, 1989, p. 162-180. Research supported by Rockwell International

Statistics

Computation

139

Active Galactic Nuclei, Black Holes (Astronomy), Compton Effect, Computational Astrophysics, Radio Jets (Astronomy), Relativistic Velocity, Accretion Disks, Bl Lacertae Objects, Deceleration, Light Speed, Monte Carlo Method

Scientific paper

A detailed study of the dynamical interaction between a highly relativistic jet and the thermal radiation field from an AGN accretion disk is reported, and the Comptonized spectrum arising from this interaction is self-consistently determined. A simple model that captures the essential radiative and geometrical features of realistic disk configurations is presented, and the disk radiation field is calculated. The results confirm Phinney's (1987) suggestion that the thermal radiation field produced by accretion in an AGN could be very effective in decelerating ultrarelativistic jets that are accreted by electromagnetic or hydromagnetic forces closer to the central black hole. Terminal Lorentz factors are consistent with the values inferred in superluminal radio sources are readily produced in this model for plausible disk and jet parameters without additional acceleration in the interaction zone. A new interpretation of the hard X-ray component detected in BL Lac spectra is proposed.

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