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Line Shifts in the Two-Phase Broad-Line Region with Radial Kinematics1

Published online by Cambridge University Press:  12 April 2016

Sui-Jian Xue  and
Fu-Zhen Cheng
Sui-Jian Xue
Affiliation:
The Center for Astrophysics, University of Science and Technology of China, Hefei, 230026, China
Fu-Zhen Cheng
Affiliation:
The Center for Astrophysics, University of Science and Technology of China, Hefei, 230026, China

Abstract

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We consider in detail the two-phase BLR model with radial infall kinematics. Numerical calculations show that Lyα and C IVλ1549 profiles are blueshifted from their systemic rest-frame velocity, and their profiles are in qualitative agreement with the observations. It seems that the observed velocity differences between the high and low-ionization lines in the spectra of quasars can be understood in such a simple, physical, self-consistent model.

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. 179 - 182
Copyright
Copyright © Astronomical Society of the Pacific 1997

Footnotes

2

Also in Shaanxi Astronomical Observatory, Chinese Academy of Sciences, Lintong, 710600, China.

1

This work is supported by the National Natural Science Foundation of China and National Pan Deng Project of China.

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