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   51063
   An X-ray Pulsar, RX1838.4-0301, is considered to belong to a new class
   of X-ray pulsars. It has common features with a new X-ray pulsar
   4U0142+614, famous 1E2259+586 and 1E1048.1-5937. Those have about 6s
   pulse periods with steady spin down, persistent low luminosities of
   10^35 erg/s, steep power-law spectra of alpha=3, and associations with
   SNR. The purpose of this observation is to confirm the ROSAT detection
   of the 5.45 s pulse, and to obtain a good spectrum to investigate the
   new class of X-ray pulsars.
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