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Paper: |
Broad Absorption Line Variability in Radio-Loud Quasars |
Volume: |
460, AGN Winds in Charleston |
Page: |
118 |
Authors: |
Miller, B. P.; Welling, C. A.; Brandt, W. N.; Gibson, R. R. |
Abstract: |
We present preliminary results from an investigation into broad
absorption line (BAL) variability within a sample of 41 radio-loud
quasars (RLQs). Using 28 new Hobby-Eberly Telescope (HET) spectra
along with earlier Sloan Digital Sky Survey (SDSS) or other archival
data, we generate a total set of 50 pairs of BAL equivalent width
measurements. Absorption variability in BAL RLQs typically consists of
modest changes in the depth of trough segments, and variability is
more common on longer rest-frame timescales; these tendencies are
similar to previous findings for BAL radio-quiet quasars (RQQs). BAL
variability in RLQs does not show any obvious dependence upon radio
luminosity or loudness, but there is suggestive support for greater
fractional variability among lobe-dominated RLQs. |
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