******************************************************
   PR # 22004
    The rapidly rotating K1 giant YY Men is one of the most active       
    coronal stars known to us. It exhibits gradual flares with durations 
    up to 10 days in various wavelength regimes. There are indications   
    that this extremely active corona maintains a substantial, very hot  
    (above 20 MK) plasma component probably related to the long-lasting  
    extensive energy releases. Coronal spectroscopic diagnostics of such 
    hot plasmas was difficult if not impossible with previous X-ray      
    detectors; we therefore propose to study this extreme corona with    
    ASCA to derive emission measures of plasma at possibly up to 100 MK  
    in order to assess the energy budget in a corona that is strongly    
    modified and heated by frequent, strong flaring processes.           
 ******************************************************