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   PR # 42173
   The separation of non-thermal and thermal components is a key
   ingredient for testing BL Lac/Radio Galaxy unification. While great
   strides have been made by observing carefully selected samples with
   ROSAT, there are two missing steps: (1) ROSAT imaging is unable to
   measure an extended thermal component in the presence of a bright
   point source (a BL Lac object) because of wings in the point spread,
   and (2) ROSAT spectroscopy cannot distinguish between non-thermal
   emission and small-scale hot gas in the unresolved emission from
   radio galaxies. We propose ASCA spectroscopy of the two best
   candidates from our complete ROSAT-observed sample in order to
   overcome these critical shortcomings. The ASCA spectral decomposition
   will probe the active nucleus and its gaseous environment.
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