Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989stin...8930148c&link_type=abstract
Unknown
Astronomy and Astrophysics
Astronomy
Active Galactic Nuclei, Quasars, Radio Astronomy, Radio Jets (Astronomy), Spectral Energy Distribution, Stellar Models, Energy Spectra, Mathematical Models, Spectral Emission, Spectrum Analysis, Spheres, Symmetrical Bodies
Scientific paper
The wind and shock model for quasars is confronted to observations of 3C 273 obtained since late 1983. Two physical mechanisms that lead to physical conditions similar to those empirically derived from the model, are proposed. The physical parameters are determined by the observations of individual sources. Changes in the values of the parameters account for the observed variations in the continuum energy distribution. Energy transport processes lead to sets of parameters in agreement with the values empirically determined. Few predictions can be made on the basis of the model. It is necessary to confront the wind and shock model with observations of other sources to see whether this description can be applied, and what could cause the differences between the individual quasars. It is shown that the hypothesis of spherical symmetry used for simplicity in the original model must be abandoned.
Camenzind Max
Courvoisier Thierry J. -L.
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