Back to Volume
Paper: Absorption-Line Variability of Broad-Absorption Line Quasars
Volume: 460, AGN Winds in Charleston
Page: 101
Authors: Dietrich, M.; Mathur, S.; Terndrup, D. M.; Hall, P. B.; Leighly, K. M.; Barber, S. D.
Abstract: We present first results of an ongoing study of BAL QSO variability. Our goal is to infer the amplitude and the timescale of absorption-line variations. While about 75% of our BAL QSOs show no or only minor variations, we discovered the transition of a weak BAL QSO into a strong Lo-BAL QSO, with the MgII λ 2798 emission line and the adjacent FeII UV emission completely vanishing in less than 10 years.
Back to Volume