Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...262..460e&link_type=abstract
Astrophysical Journal, Part 1, vol. 262, Nov. 15, 1982, p. 460-477.
Astronomy and Astrophysics
Astronomy
59
Bl Lacertae Objects, Continuous Radiation, Infrared Radiation, Quasars, Radio Astronomy, Astronomical Models, Blazars, Flux Density, Millimeter Waves, Radio Emission, Radio Sources (Astronomy), Relativistic Particles, Synchrotron Radiation
Scientific paper
Broadband 1-mm continuum observations of 37 active extragalactic objects are discussed in the context of several models of the radio and IR continuum emission of compact extragalactic objects. The observed correlation of the 1-mm flux density of 'blazars', or BL Lac objects and optically violent, variable quasars, with both radio and IR emission, is a natural consequence of the attribution of the radio-to-optical blazar continuum to synchrotron radiation from a relativistic jet viewed nearly along its axis. It is shown that a Comptonization model in which the IR continuum of quasars is produced by the upscattering of radio photons into the IR by a thermal plasma will be in accord with the 1-mm and IR data, if these photons have frequencies in the 10 to the 12th to 10 to the 13th Hz range.
Ennis David James
Neugebauer Gernot
Werner Marcel
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