  Spectropolarimetry of broad absorption line quasi-stellar objects with the W.
M. Keck Telescope is used to put constraints on their nuclear structure. If the
continuum polarization is due to electron (or dust) scattering, then the
scattered and direct rays probe the nucleus along multiple lines of sight,
which suffer differing amounts of absorption. Multiple sources of polarized
light contribute to the quasar emission, and the relative sizes and symmetries
of these sources can be ascertained. The size of the electron scattering region
relative to continuum source, broad emission line region, and broad absorption
line region is determined using spectropolarimetry. The geometries of the
scattering and broad absorption line regions are discussed in an attempt to
discriminate between polar and equatorial outflows. The variation of
polarization with velocity in the broad absorption troughs may also be used to
study the dynamics of the absorbing gas.
