Evidence for an accelerating wind as the broad-line region in NGC 3516

J. B. Hutchings; G. A. Kriss; R. F. Green; M. Brotherton; M. E. Kaiser; A. P. Koratkar; W. Zheng

doi:10.1086/322329

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arXiv · astro-ph/0107002

Evidence for an accelerating wind as the broad-line region in NGC 3516

J. B. Hutchings·G. A. Kriss·R. F. Green·M. Brotherton·M. E. Kaiser·A. P. Koratkar·W. Zheng

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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.

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J. B. Hutchings, G. A. Kriss, R. F. Green, M. Brotherton, M. E. Kaiser, A. P. Koratkar, W. Zheng. 2001-06-29. Evidence for an accelerating wind as the broad-line region in NGC 3516. https://doi.org/10.1086/322329

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