In principle, the wavelength dependence of diffraction and scattering
structure in a space-based coronagraphic PSF can be used to good effect
in removing the halo light of the host star (Sparks and Ford 2002).
Here, we test application of this "spectral deconvolution" method using
observations of the double brown dwarf near HD130948A with the
Aberrated Beam Coronagraph on HST's Advanced Camera for Surveys.
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