Absorption-Line Variability of Broad-Absorption Line Quasars

被引：0
|
作者：
Dietrich, Matthias [1 ]
Mathur, Smita [1 ]
Terndrup, Donald M. [1 ]
Hall, Patrick B. [2 ]
Leighly, Karen M. [3 ]
Barber, Sara D. [3 ]
机构：
[1] Ohio State Univ, Dept Astron, McPherson Lab 4055, 174 W 18Th Ave, Columbus, OH 43210 USA
[2] York Univ, Dept Phys & Astron, Toronto, ON M3J IP3, Canada
[3] Univ Oklahoma, Homer L Dodge Dept Phys & Astron, Norman, OK 73019 USA
来源：
AGN WINDS IN CHARLESTON | 2012年 / 460卷
关键词：
MULTIYEAR TIMESCALES;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
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 lambda 2798 emission line and the adjacent FeII UV emission completely vanishing in less than 10 years.
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页码：101 / +
页数：2
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