Broad Absorption Line Variability in Radio-Loud Quasars

被引：0
|
作者：
Miller, B. P. [1 ]
Welling, C. A. [2 ,4 ]
Brandt, W. N. [3 ,4 ]
Gibson, R. R.
机构：
[1] Univ Michigan, Dept Astron, 500 Church St, Ann Arbor, MI 48109 USA
[2] Dept Phys & Astron, Dickinson Coll, Carlisle, PA USA
[3] Penn State Univ, Dept Astron & Astrophys, Davey Lab, University Pk, PA USA
[4] Inst Gravitat & Cosmos, Penn, PA 4 USA
来源：
AGN WINDS IN CHARLESTON | 2012年 / 460卷
关键词：
DIGITAL SKY SURVEY; DATA RELEASE; CATALOG;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
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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页码：118 / +
页数：2
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