Abstract
view Abstract Citations (24) References (21) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The nature of Cygnus X-3 radio outbursts from an analysis of radiofrequency spectra. Gregory, P. C. ; Seaquist, E. R. Abstract Radiofrequency spectra of Cygnus X-3, between 0.4 and 22.2 GHz, have been compiled at 17 epochs during the giant radio outbursts of September 1972. Assuming that synchrotron radiation is responsible for the emission process, four absorption mechanisms have been considered to account for the low-frequency turnover of the spectra: (1) self absorption by the radiating relativistic particles, (2) free-free absorption by a thermal plasma uniformly mixed with radiating particles, (3) free-free absorption by a thermal plasma surrounding the radiating particles, and (4) is found to provide the best overall fit to the observed spectra. The results of the spectra analysis provide a useful test of models proposed to explain the temporal variations of the flux density of Cygnus X-3 during an outburst. Publication: The Astrophysical Journal Pub Date: December 1974 DOI: 10.1086/153293 Bibcode: 1974ApJ...194..715G Keywords: Astronomical Models; Electromagnetic Absorption; Radio Bursts; Radio Spectra; Synchrotron Radiation; X Ray Sources; Interstellar Extinction; Microwave Spectra; Radiant Flux Density; Radio Sources (Astronomy); Relativistic Particles; Self Absorption; Superhigh Frequencies; Thermal Plasmas; Space Radiation full text sources ADS |
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