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   71077
   Significant hard X-ray emission has been detected with ASCA from a
   number of galaxy groups. The hard X-rays, presumably of non-thermal
   nature, suggest that the intra-group space is a site of extensive
   particle acceleration. In order to test this hypothesis, we propose a
   80 ksec observation of the Shakhbazyan' compact group No.202 (SCGG
   202). Although this compact group has a very high galaxy density and a
   high velocity dispersion (450 km/s), its X-ray properties is totally
   unknown.
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