2004A&A...420L..19H

An XMM-Newton target of opportunity observation of the field around the transient 18.37s pulsar XTEJ0055-727 in the Small Magellanic Cloud (SMC) revealed two bright, long-period X-ray pulsars in the EPIC data. A new pulsar, XMMU J005517.9-723853, with a pulse period of 701.7±0.8s was discovered and 500.0 ±0.2 s pulsations were detected from XMMU J005455.4-724512 (=CXOU J005455.6-724510), confirming the period found in Chandra data. We derive X-ray positions of RA=00^h54^m55.88s, Dec=-72°45'10.5" and RA=00^h55^m18.44s, Dec=-72°38'51.8" (J2000.0) with an uncertainty of 0.2" utilizing optical identification with OGLE stars. For both objects, the optical brightness and colours and the X-ray spectra are consistent with Be/X-ray binary systems in the SMC.