Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...228..268j&link_type=abstract
Astrophysical Journal, Part 1, vol. 228, Feb. 15, 1979, p. 268-278. Research supported by the University of Minnesota.
Astronomy and Astrophysics
Astronomy
70
Astronomical Spectroscopy, Extraterrestrial Radiation, Maxwell-Boltzmann Density Function, Polarization Characteristics, Radio Sources (Astronomy), Synchrotron Radiation, X Ray Sources, Astronomical Models, Compton Effect, Electron Distribution, Electron Plasma, Relativistic Particles
Scientific paper
The emission, absorption, polarization, and birefringent properties of a magnetized, relativistic, Maxwellian electron plasma are computed. The Maxwellian synchrotron source is notable for the near absence of Faraday rotation and polarization conversion. When opaque, the emission from a Maxwellian synchrotron source is Planckian, and hence unpolarized. The first-order self-Compton spectrum includes a high-frequency tail which extends well beyond the nominal cutoff frequency. The self-Compton spectral flux is simply related to the source Compton optical depth, and it is argued that only at gamma-ray energies would the second-order self-Compton emission be significant for realistic particle distributions and typical source parameters. To illustrate the basic properties of Maxwellian sources, a uniform, isothermal Maxwellian source model has been fitted to the radio and X-ray spectrum of 3C 273.
Hardee Philip E.
Jones Thomas W.
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