Neal Jackson
Abstract.
Quasar lensing offers an important diagnostic of masses and mass
distributions in foreground objects, and is sensitive to both
baryonic and dark matter. In addition, strong lensing also magnifies
the brightness of background objects, allowing one to probe regions
with potentially interesting cosmological information. In this
review I present individual theoretical results, and discuss
possible future applications of quasar lensing, and the
observational programmes which will develop the subject in the
coming years.
Keywords: gravitational lensing -- cosmology: observations -- cosmological parameters
-- quasars: general -- galaxies: general
University of Manchester, School of Physics & Astronomy,
Jodrell Bank Centre for Astrophysics, Manchester, UK