Swift Detection of 11.82 s Pulsations from IGR J18179-1621
Abstract
Examining Swift XRT observations of the location of the new hard X-ray transient IGR J18179-1621 (Tuerler et al., ATel #3947) taken on 2012 February 29 - March 1 UT (MJD 55986.84-55987.67) for a total exposure time of 3800 s, I find a source at R.A. = 18h17m51.9s, decl. = -16d21'31" (J2000.0) with 0.80 counts/s in the 2-10 keV range, and cut off below 2 keV. Fourier analysis shows a strong signal at P=11.82(1) s, with a single-peaked pulse and a pulsed fraction of 27%.
- Publication:
-
The Astronomer's Telegram
- Pub Date:
- March 2012
- Bibcode:
- 2012ATel.3949....1H
- Keywords:
-
- X-ray;
- Binary;
- Neutron Star;
- Transient;
- Pulsar