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| 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. |
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