Abstract
We present light curves of EX Hydrae in the 1–10 keV range obtained with the medium energy experiment of EXOSAT. The 67-min modulation was observed with a peak-to-peak amplitude of 36 % in the 1–4 keV range and of 24 % in the 4–9 keV range. Newly discovered was a partial X-ray eclipse of ∼ 3 min full width which coincides with the optical eclipse and is seen at all energies. The results are interpreted in terms of an intermediate-polar (DQ Her star) model of EX Hydrae.
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