Other
Scientific paper
Feb 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...337...66d&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 337, Feb. 1, 1989, p. 66-77. Research supported by Rockwell International C
Other
15
Active Galactic Nuclei, Spectrophotometry, Synchrotron Radiation, X Ray Sources, Compton Effect, Cooling, Electron Energy, Relativistic Particles, Steady State, Thermal Plasmas, Time Dependence
Scientific paper
The properties of compact, homogeneous self-absorbed synchroton sources in active galactic nuclei are explored, calculating the time evolution of such sources after an impulsive injection of relativistic electrons, and the steady state properties in the case of steady injection. The models include synchroton self-Compton losses in a self consistent way. The behavior of the models is determined mainly by the relative importance of synchroton and inverse Compton energy losses. It is found that pure self-absorbed synchroton self-Compton models always predict a continuum spectral slope which is flatter than observed. The problem can be resolved either by including another cooling mechanism for the relativistic electrons, which operates preferentially at low gamma, such as Coulomb collisions with thermal background electrons, or by assuming that there is an external source of primary photons with a luminosity greater than the energy injection rate in relativistic electrons, e.g., the 'UV bump'. The latter possibility, however, predicts an X-ray luminosity which is higher than observed.
Begelman Mitchell C.
de Kool Martijn
Sikora Marek
No associations
LandOfFree
Self-absorbed synchroton sources in active galactic nuclei does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Self-absorbed synchroton sources in active galactic nuclei, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-absorbed synchroton sources in active galactic nuclei will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1884267