High-Velocity Narrow-Line Absorbers in QSOs
Astrophysics
2007-05-23 v1
Abstract
We discuss the identification and kinematics of intrinsic narrow-line absorbers in three QSOs. The line-of-sight ejection velocities in the confirmed intrinsic systems range from 1500 to 51,000 km/s. The ratio of ejection velocity to line width, V/Delta-V, in these systems ranges from ~3 to 60, in marked contrast to the BALs where typically V/Delta-V ~ 1. We speculate on the possible relationship between the BAL and narrow-line absorbers. Like the BALs, intrinsic narrow-line systems appear to be rare, but the outflows that cause them might be common if they cover a small fraction of the sky as seen from the QSO.
Keywords
Cite
@article{arxiv.astro-ph/9704234,
title = {High-Velocity Narrow-Line Absorbers in QSOs},
author = {F. Hamann and T. Barlow and R. D. Cohen and V. Junkkarinen and E. M. Burbidge},
journal= {arXiv preprint arXiv:astro-ph/9704234},
year = {2007}
}
Comments
6 pages, LaTeX, to appear in ``Mass Ejection From AGN,'' eds. R. Weymann, I. Shlosman, N. Arav