C IV 1550 A emission profiles in IUE spectra of Seyfert 1 galaxies

Details C IV 1550 A emission profiles in IUE spectra of Seyfert 1 galaxies C IV 1550 A emission profiles in IUE spectra of Seyfert 1 galaxies

May 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...280..516s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 280, May 15, 1984, p. 516-520.

Astronomy and Astrophysics

Astronomy

7

Astronomical Spectroscopy, Seyfert Galaxies, Spectral Line Width, Ultraviolet Astronomy, Carbon, Emission Spectra, H Lines, Iue

Scientific paper

Using observed C IV 1550 A emission-line profiles of type 1 Seyfert galaxies obtained with the International Ultraviolet Explorer, numerical comparisons have been made of the ability of model profiles to fit the observations. It is found that simple two-component models provide better fits to observed profiles than one-component logarithmic models, and that the observed time variabilities in the profiles of NGC 5548 are consistent with individually varying components of constant width and redshift. In such two-component fits, the broader component that is responsible for the wings of the profiles has approximately the same width in four different Seyfert 1 galaxies.

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