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   51003
   We propose to observe a young pulsar PSR 1823-13 and its surrounding
   for 40 ksec. There is no known supernova remnant associated in radio
   band. However, our analysis of ROSAT PSPC data shows possibility that a
   supernova remnant surrounds this pulsar. As observed around other
   pulsars, strong pulsar nebula emission is also expected at ASCA band.
   Studying these emissions in addition to that from the pulsar leads to
   the total understanding of this system, including the particle
   acceleration around the pulsar. Taking advantage of good sensitivity
   and high energy resolution of ASCA, we are going to obtain the energy
   spectra from surrounding SNR, pulsar nebula, and the pulsar. Timing
   analysis of the pulsar is also useful to study its emission mechanism.
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