A double-stream model for line profiles

Details A double-stream model for line profiles A double-stream model for line profiles

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...365..115z&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 365, Dec. 10, 1990, p. 115-118.

Astronomy and Astrophysics

Astrophysics

75

Galactic Nuclei, H Beta Line, Line Shape, Line Spectra, Seyfert Galaxies, Emission Spectra, Forbidden Transitions, Oxygen Spectra, Spectrum Analysis

Scientific paper

It is shown that gas clouds in a biconical shape may produce profiles similar to those produced in a spherical geometry. The profile shape depends on the radial velocity field, the projection angle, and most importantly, the shell luminosity distribution. If the conical region extends over a large range of radial distances, the resultant profile may be symmetrical with logarithmic wings. It is shown that the double-peaked H-beta profile in Akn 120 can be modeled with a double-stream model.

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