An optical & X-ray study of the counterpart to the SMC X-ray binary   pulsar system SXP327
  Optical and X-ray observations are presented here of a newly reported X-ray transient system in the Small Magellanic Cloud. The data reveal many previously unknown X-ray detections of this system and clear evidence for a 49.995d binary period. In addition, the optical photometry show recurring outburst features at the binary period which may well be indicative of the neutron star interacting with a circumstellar disk around a Be star. 
M. J. Coe (Southampton Univ), M. Schurch (Southampton Univ), R.H.D.   Corbet (NASA/GSFC), J. Galache (CfA), V.A. McBride (So...