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   62130
   Broad Absorption Line (BAL) quasars allow us to observe substantial gas
   flows that are probably present in all radio-quiet quasars. We propose
   a systematic ASCA survey of the optically brightest BAL quasars. These
   quasars are absorbed at low X-ray energies, and we will penetrate
   through the absorption to find and study the X-ray brightest BAL
   quasars. We will obtain the best constraints to date on the intrinsic
   X-ray absorption in BAL quasars, and we will discover the best targets
   for follow-up X-ray spectroscopy using deep pointings by ASCA, AXAF and
   XMM. All of our targets are optically brighter than PHL 5200, a BAL
   quasar that was clearly detected in a 17 ks ASCA observation. This
   program takes advantage of ASCA's unique capability for imaging and
   spectroscopy in the 2-10 keV band.
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