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Paper: The Origin and Physical Mechanism of the Ensemble Baldwin Effect
Volume: 408, The Starburst−AGN Connection
Page: 83
Authors: Dong, X.; Wang, J.; Wang, T.; Wang, H.; Fan, X.; Zhou, H.; Yuan,W.; Long, Q.
Abstract: We have conducted a systematic investigation of the origin and underlying physics of the line–line and line–continuum correlations of AGNs. Based on the homogeneous sample of Seyfert 1s and QSOs in the SDSS DR4, we find the origin of all the emission-line regularities is Eddington ratio (L/LEdd). The essential physics is that L/LEdd regulates the distributions of the properties (particularly column density) of the clouds bound in the line-emitting region.
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