Condensations in expanding QSO envelopes

Details Condensations in expanding QSO envelopes Condensations in expanding QSO envelopes

Feb 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977a%26a....55..125k&link_type=abstract

Astronomy and Astrophysics, vol. 55, no. 1, Feb. 1977, p. 125-133.

Astronomy and Astrophysics

Astrophysics

12

Absorption Spectra, Astronomical Models, Condensation, Gas Expansion, Quasars, Boundary Value Problems, Particle Acceleration, Radiative Transfer, Spectral Line Width, Supersonic Flow, Wind Velocity

Scientific paper

A model for the formation of QSO absorption lines is presented. In a wind driven by radiative acceleration, density waves occur which move with supersonic velocities relative to the outstreaming gas. The model follows from a hydrodynamic solution. It gives the high blue shift of the absorption systems relative to the emission-line system, the observed small line width of the absorption lines, and the observed column densities.

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