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   61178
   The catalog of Shakhbazyan's compact groups of galaxies (SCGGs) is a
   catalog that has never been explored in X-rays in the past. We propose
   ASCA observations on two representative compact groups (SCGG 205 and
   SCGG 223) from this catalog. Each target consists of about ten member
   galaxies and shows extremely large velocity dispersion ($>1000$ km
   s$^{-1}$). By measuring the total gravitating mass, together with
   temperature and abundance of the intra-group gas, we expect new
   breakthroughs on the study of groups and clusters of galaxies.
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