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   PR # 21508
    The existence, or otherwise, of accretion disks in intermediate      
    polars has been a controversial issue for several years. The best    
    diagnostic to date involves the relative strength and energy         
    dependence of hard X-ray periodicities; studies for which ASCA is    
    ideally suited. Recent ASCA observations have yielded valuable       
    evidence of disk accretion and some evidence of direct accretion in  
    one system. The picture will not be clear however until the system TX
    Col is observed; the IP which has previously exhibited the best      
    evidence of diskless accretion. Taken with these other studies, an   
    ASCA observation of TX Col promises to provide a framework within    
    which we can finally understand the accretion geometry of            
   intermediate polars.          
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