Gravitational Microlensing and the Structure of Quasar Outflows

Details Gravitational Microlensing and the Structure of Quasar Outflows Gravitational Microlensing and the Structure of Quasar Outflows

2005-04-12

arxiv.org/abs/astro-ph/0504260v1

Astrophys.J. 629 (2005) 667-672

Astronomy and Astrophysics

Astrophysics

6 pages, 6 figures (low resolution format), accepted for publication in ApJ

Scientific paper

10.1086/430900

We show that invaluable information on the structure of quasar outflows can be obtained by considering microlensing (ML) induced variability of absorption line troughs in lensed quasars. Depending on the structure and geometry of the outflowing gas, such extrinsic line variability can be manifested as changes to the equivalent width of the line as well as line profile distortions. Here we consider several physically distinct outflow models, having very similar spectral predictions, and show how ML induced absorption line variability can be used to distinguish between them. The merits of future systematic studies of these effects are exemplified.

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