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   61010
   ASCA has proven to be very powerful for pulsar observations thanks to
   its imaging, spectroscopic, and timing capabilities in high energy
   band. Examples are new detections of pulsar-wind nebulae from old
   pulsars, and discovery of the first magnetospheric X-ray pulsation from
   a millisecond pulsar. We propose to expand the ASCA sample of pulsars
   with a systematic survey project, starting with 8 pulsars in this AO.
   With this project, we investigate the characteristics of the X-ray
   emission from the neutron star surface, the pulsar magnetosphere, and
   the pulsar-wind nebula, and their dependence on age, spin period,
   magnetic field, and pulsar environment. The goal is to understand the
   acceleration and emission mechanism of pulsars and their evolution.
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