Evidence for an accelerating wind as the broad-line region in NGC 3516
Astrophysics
2009-11-06 v1
Abstract
Spectroscopic data in wavelengths 900--3000A have been obtained in a low flux state of the nucleus of the Seyfert 1 galaxy NGC 3516. The line profiles show P Cygni characteristics, particularly in O VI 1032A, and are compared with data from an earlier higher state. The profiles are suggestive of, and consistent with, an accelerating wind driven by a disk continuum source, in which the ionisation radii have changed. This scenario may apply to the formation of other broad emission lines in AGN.
Cite
@article{arxiv.astro-ph/0107002,
title = {Evidence for an accelerating wind as the broad-line region in NGC 3516},
author = {J. B. Hutchings and G. A. Kriss and R. F. Green and M. Brotherton and M. E. Kaiser and A. P. Koratkar and W. Zheng},
journal= {arXiv preprint arXiv:astro-ph/0107002},
year = {2009}
}
Comments
16 pages and 4 diagrams; to appear in the Astrophysical Journal