WE PROPOSE TO OBTAIN THE FIRST HARD X RAY IMAGING OBSERVATION OF THE INTERMEDIATE POLAR EX HYA WHICH WILL ALLOW US TO KNOW THE TRUE HIGH ENERGY SPECTRUM. PREVIOUS NON-IMAGING OBSERVATIONS WERE UNABLE TO SUBTRACT THE CONTAMINATION BY THE CLOSE CLUSTER OF GALAXIES ABELL 3528. THE HARD X RAY SPECTRUM WILL BE USED TO DETERMINE THE SHOCK TEMPERATURE AND THE SHOCK HEIGHT THUS OBTAIN THE WHITEDWARF MASS AND SEARCH FOR REFLECTION SIGNATURES FROM THE MAGNETIC ACCRETION COLUMN. THE PROPOSED STUDY HAS BROAD IMPLICATIONS TO OUR UNDERSTANDING OF MAGNETIC ACCRETION AND PLASMA COOLING MECHANISMS.

University Of Wisconsin System, Madison WI

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