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   PR # 42083
   ROSAT observations of CTA1 reveal a center-filled SNR whose
   morphology and spectrum suggests the presence of a central pulsar.
   The spectral characteristics appear consistent with a dominant
   synchrotron nebula in the central regions accompanied by a thermal
   perimeter which extends to the radio shell. We propose an ASCA
   observation consisting of two pointings, one centered on the bright
   central region and the other along the bright radio shell. The
   observations will confirm or refute the interpretation of a central
   plerion, provide a determination of the thermal characteristics of
   the blast wave region, and allow a comparison of the central engine
   energetics with the dynamical properties of the blast wave to provide
   a broad picture of the SNR development.
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