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C IV λ1549 Emission-Line Profile Variations in AGN

Published online by Cambridge University Press:  12 April 2016

Marc Türler  and
Thierry J.-L. Courvoisier
Marc Türler
Affiliation:
Geneva Observatory, ch. des Maillettes 51, CH-1290 Sauverny, Switzerland
Thierry J.-L. Courvoisier
Affiliation:
INTEGRAL Science Data Centre, ch. d’Écogia 16, CH-1290 Versoix, Switzerland

Abstract

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We study the C IV λ1549 emission-line profile variations in 18 Seyfert 1-type objects observed with the IUE satellite from 1978 to 1991. The core and the two wings of the line are integrated separately in order to study differences between the wings and the core and between the blue and the red wings. A principal component analysis is applied to spectra of each object. The results suggest the presence of a significant infall component in the line-emitting region of several AGN.

Type
III. Broad-Line Profiles and Variability
Information
International Astronomical Union Colloquium , Volume 159: Emission Lines in Active Galaxies: New Methods and Techniques , 1997 , pp. 191 - 192
Copyright
Copyright © Astronomical Society of the Pacific 1997

References

Pogge, R.W., & Peterson, B.M. 1992, AJ, 103, 1084.Google Scholar
Türler, M., & Courvoisier, T.J.-L. 1997, in preparation.Google Scholar