OSSE Observations of X-Ray Pulsars
NAVAL RESEARCH LAB WASHINGTON DC
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We report on OSSE observations of the Be binary pulsars A053526, GRO J1008-57, and 4U 011563 at energies above 50 keV. The spectra are generally thermal, with exponential folding energies of 15-25 keV, and no evidence for hard power-law tails. We have clearly detected a strong cyclotron absorption line at 110 keV from A053526 1, and we find a suggestion of an absorption line near 90 keV from GRO J1008-57.