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The Joint Astrophysical Plasmadynamic Experiment
Nigel Bannister (Leicester)
Operating near normal incidence and incorporating the most recent
developments in multilayer reflective coatings, ion-etched gratings, and
detectors, the JPEX instrument will deliver a resolution and
effective area 10 times that achieved by EUVE in the 225-245 Angstrom band.
The first flight of JPEX towards the end of 1999, on board a sounding
rocket, will observe the hot DA white dwarf G191-B2B. The aim is to search
for the presence of HeII along the line-of-sight and, if found, determine
whether it resides in the photosphere or interstellar medium.
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