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   PR # 12054
    We propose to use high signal to noise ASCA SIS observations of six
    early B stars and one very late O star to constrain detailed models
    of X-ray production and attenuation by the overlying stellar winds.
    We will consider several different models of X-ray production and
    will fit multicomponent empirical models to the ASCA data. The sample
    stars were chosen because they exhibit properties which standard radi
    ation driven wind and wind shock models have an especially difficult
    time explaining.  These properties includelarge emission measures and
    high temperatures.  The sample includes two betacephei variables and
    one possible Be star.We have EUVE observations for three of the seven
    sample stars which we intend to use in conjunction with the ASCA
   spectra to constrain the model
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