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Kinematics of the BLR Clouds in AGNs and Quasars

Published online by Cambridge University Press:  19 July 2016

P M Gondhalekar*
Affiliation:
Astrophysics Group Rutherford Appleton Laboratory Chilton, OXON, OX11 0QX, England

Abstract

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The Lyα and the C IV line profiles in the spectra of quasars and Seyfert 1 galaxies can be described by a combination of a narrow and a broad component. Over four orders of magnitude in luminosity the profiles of Lyα and C IV lines in the quasar spectra are very similar but a change is observed in the C IV profile in the spectra of Seyfert 1 galaxies which cover a smaller luminosity range. The correlation of the FWHM of Lyα, C IV and Hβ lines suggests that the Lyα and C IV lines are emitted from clouds in a similar kinematic enviornment but part of C IV line may also be emitted from clouds which emit the Hβ line.

Type
Poster Contributions: Line Studies
Copyright
Copyright © Kluwer 1994