Discovery of a new X-ray Transient Pulsar Suzaku J0102-7204 in the SMC
ATel #4628; Q. Wada (U of Tokyo, JAXA/ISAS), M. Tsujimoto (JAXA/ISAS), K. Ebisawa (U of Tokyo, JAXA/ISAS)
on 7 Dec 2012; 21:43 UT
Distributed as an Instant Email Notice Transients
Credential Certification: Masahiro Tsujimoto (tsujimot@astro.isas.jaxa.jp)
Subjects: X-ray, Binary, Transient, Pulsar
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.
