Expected level of self-Compton scattering in radio loud quasars

Details Expected level of self-Compton scattering in radio loud quasars Expected level of self-Compton scattering in radio loud quasars

Feb 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992nascp3137..339b&link_type=abstract

In NASA. Goddard Space Flight Center, The Compton Observatory Science Workshop p 339-345 (SEE N92-21874 12-90)

Astronomy and Astrophysics

Astronomy

17

Compton Effect, Gamma Ray Spectra, Gamma Rays, Quasars, Radio Emission, Synchrotrons, X Rays, Flux Density, Gamma Ray Telescopes, Photons, Sky Surveys (Astronomy), Very Long Base Interferometry

Scientific paper

Radio-loud quasars usually contain parsec-scale nonthermal jets. The most compact emission region ('the core'), and perhaps some of the moving 'knots', are expected to be efficient producers of inverse Compton scattered X-rays and gamma-rays since many of the synchrotron photons will upscatter before escaping. Through multifrequency flux density observations and Very Long Baseline Interferometry (VLBI) measurements of angular sizes, one can predict the flux density of this self-Compton high-energy emission. It is not always the case that the brightest synchrotron sources are also the brightest X-ray and gamma-ray sources. Perhaps a better predictor of high-energy brightness is the ratio of hard X-ray to high-frequency radio emission. Using the synchrotron self-Compton relations, we predict the gamma-ray fluxes of several sources we expect to be detected by the Energetic Gamma Ray Experiment Telescope (EGRET). More accurate predictions will be made when we complete a program of contemporaneous radio-submillimeter and X-ray observations during the course of the EGRET all-sky survey.

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