On the dynamics of the broad-line gas in Seyfert 1 galaxies

Details On the dynamics of the broad-line gas in Seyfert 1 galaxies On the dynamics of the broad-line gas in Seyfert 1 galaxies

Jan 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...252l..49t&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 252, Jan. 15, 1982, p. L49-L52. Research sponsored by the U.S. Depar

Astronomy and Astrophysics

Astrophysics

41

Galactic Nuclei, Gas Dynamics, Interstellar Gas, Seyfert Galaxies, Spectral Line Width, Active Galactic Nuclei, Galactic Radiation, Spiral Galaxies

Scientific paper

No correlation is found in nearby Seyfert 1 galaxy analyses between broad permitted line widths and observed galaxy spiral disk inclination, suggesting that the lines are not rotationally broadened. It is however, noted that there remain observational and theoretical grounds for maintaining that rapidly rotating gas in the nucleus of a spiral galaxy need not be confined to the same plane as that of the primary disk of the galaxy. The lack of correlation noted therefore does not preclude rotation as the primary broadening mechanism, for lines emitted from the broad-line gas in Seyfert 1 galaxies, and models of nuclear gas dynamics in active galactic nuclei should allow for possible tilted orientation of the gas.

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