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    PR # 31264                                                                   
     Virgo cluster is the nearest rich cluster. Its shape is quite irregul       
     ar, and it is thought to be a young cluster which has not relaxed dyn       
     amically yet. "Ginga" observation revealed that ICM in the Virgo clus       
     ter consists of two components corresponding to the two sub-clutering       
      of galaxies, M87 cluster and M49 cluster. These two subclusters are        
     merging into each other. We propose to observe the boundary surface t       
     o study the influence of merging to the temperature and abundance of        
     ICM. "Ginga" also revealed the central concentration of iron abundanc       
     e in ICM. Iron disribution is quite important for the study of evolut       
     ion of cluster of galaxies. We investigate iron distribution in detai       
     l with "ASCA". .                                                            
                                                                                 
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