Discovery of a new X-ray Transient Pulsar Suzaku J0102-7204 in the SMC
Q. Wada (U of Tokyo, JAXA/ISAS), M. Tsujimoto (JAXA/ISAS), K. Ebisawa (U of Tokyo, JAXA/ISAS)
We have discovered an X-ray transient source with the X-ray Imaging Spectrometer on-board the Suzaku X-ray satellite during a routine calibration observation of the supernova remnant 1E 0102.2-7219 in the Small Magellanic Cloud conducted on Oct 29, 2012. The source was detected at (RA, Decl) = (01:02:41, -72:04:52) in the equinox J2000.0 with an error circle of ~20 arcsec. No X-ray source has been known at the position. A coherent X-ray pulsation was found at 522.5 +/- 0.5 s from the source. An X-ray spectrum is featureless, which is represented by an absorbed power-law model with a photon index of 0.8, the photoelectric absorption column of 1.6 x 10^21 cm^-2, and the 2-10 keV luminosity of 7.4 x 10^35 erg s^-1 at a distance of 60 kpc. Follow-up observations are encouraged to reveal the nature of this source.
x-ray,binary,pulsar,supernova remnant,supernovae,transient