Decelerated flows of matter around the quasars PHL 5200 and RS 23

Details Decelerated flows of matter around the quasars PHL 5200 and RS 23 Decelerated flows of matter around the quasars PHL 5200 and RS 23

Mar 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....96..242s&link_type=abstract

Astronomy and Astrophysics, vol. 96, no. 1-2, Mar. 1981, p. 242-253.

Astronomy and Astrophysics

Astrophysics

10

Quasars, Radiative Transfer, Stellar Mass Ejection, Stellar Spectra, Emission Spectra, Line Spectra, Mathematical Models, Resonance Lines

Scientific paper

Line profile calculations are performed within the framework of the Sobolev approximation in order to simulate the P Cygni-like profiles observed for the resonance doublets of C IV and Si IV in the spectrum of the quasar PHL 5200 and of C IV in that of RS 23. Taking into account the structure of the resonance doublets and the nonlocal transfer of line photons in an outward-decelerating envelope, it is shown that good agreement between the theory and the observations is achieved for symmetrically spherical outward-flows decelerated in the gravitational field of the central quasars.

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