Abstract
The consistent interpretation of the multiwavelength pulsar wind nebula observations require studying of interaction of a relativistic pulsar wind with the interstellar medium (ISM). In this paper we present the results of the Monte-Carlo modeling of the test particle propagation in a pulsar wind nebula beyond the pulsar wind termination shock. The non-thermal electron-positron spectra in the pulsar wind nebula and in the vicinity of the pulsar bow shock are derived in case of the supersonic proper motion of the pulsar through the ISM. The synchrotron emission images of the pulsar wind nebula at photon energies in the far ultraviolet and soft X-ray ranges are constructed. We discuss a possible interpretation of the recent HST and Chandra observations of the pulsar wind nebula associated with the PSR J0437-4715 in the frame of the model.
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