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   PR # 42175
   We propose to obtain ASCA observations of three groups of galaxies
   known to contain a diffuse intra-group medium based on ROSAT PSPC
   observations. These observations will allow us to address the
   following questions: 1) What is the typical temperature and
   metalicity of the intra-group medium in poor groups? 2) What is the
   origin of the intra-group medium? 3) What are the total masses of
   poor groups? 4) What are the baryonic fractions in poor groups?. We
   have selected three groups, which while X-ray bright, are distant
   enough that they can effectively be studied with the SIS in 2-CCD
   mode. Given the impending end to 2-CCD mode, this A0 offers the last
   chance to obtain good temperature and abundance measurements for poor
   groups.
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