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Simultaneous Observations of Solar Flares with CGRO/OSSE and Yohkoh/WBS

R.J. Murphy, G.H. Share, and M. Yoshimori

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Yohkoh and the Compton Gamma Ray Observatory are the only satellites currently measuring of gamma radiation from solar flares. In this paper we present preliminary results of a cross-calibration of the Yohkoh/Wide Band Spectrometer (WBS) and the Oriented Scintillation Spectrometer Experiment (OSSE) on CGRO. Except for one flare whose spectrum was very hard, total flux measurements by the two instruments agreed. Differences of narrow-line fluxes are probably attributable to the poorer energy resolution of the Yohkoh/WBS.