  Electrons released from clusters through strong Xray pulses show broad
kinetic-energy spectra, extending from the atomic excess energy down to the
threshold, where usually a strong peak appears. These low-energy electrons are
normally attributed to evaporation from the nano-plasma formed in the
highly-charged clusters. Here, it is shown that also directly emitted photo
electrons generate a pronounced spectral feature close to threshold.
Furthermore, we give an analytical approximation for the direct photo-electron
spectrum.
