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   62027
   UX Ari is one of the most active RS CVn systems known. It has shown
   enormous X-ray and EUVE flares in the past, but up to now there has not
   been a simultaneous EUVE/ASCA observation of these events. We propose
   here to make such an observation. The unique combination of
   capabilities of ASCA and EUVE will provide new insight into the time
   variability of the differential emission measure and the change in
   apparent stellar abundance with coronal activity.
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