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   PR #    67
   The X-ray pulsar 1E2259+586 is located within the SNR G109.1-1.0.
   Since the observed X-ray luminosity can not be accounted for by the
   energy lossestimated from the spindown rate and the spin period, it
   has been considered as the LMXB system even though both the orbital
   period and the optical counterpart are not observed. The suspicion of
   the cyclotron feature, which is not established yet, is important,
   because it indicates the magnetic field strength on the NS surface. If
   it is confirmed, it must provide the strong restriction to the model
   of the pulsar. So we need the pulsed spectrum with high energy
   resolution.
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