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Does the inner broad-line region dim down when the power turns up?The temporal correlations of continuum and broad emission-line fluxes from the Seyfert galaxy NGC 5548 as measured during the 1989 monitoring campaign show two related peculiarities: first, some of the crosscorrelations of line and continuum flux appear steeper on the negative time lag side than the continuum autocorrelation itself; then, the autocorrelation of the line flux is sometimes more sharply peaked than the continuum autocorrelation function. These are here interpreted as evidence that conditions in the inner part of the broad-line region are such that some emission lines decrease in intensity as the continuum strengthens.
Document ID
19930045194
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Sparke, Linda S.
(Washburn Observatory Madison, WI, United States)
Date Acquired
August 16, 2013
Publication Date
February 20, 1993
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 404
Issue: 2
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
93A29191
Funding Number(s)
CONTRACT_GRANT: NAGW-2420
Distribution Limits
Public
Copyright
Other

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