Possible pulsation period in SGR 1833-0832

Details Possible pulsation period in SGR 1833-0832 Possible pulsation period in SGR 1833-0832

Mar 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010atel.2494....1e&link_type=abstract

The Astronomer's Telegram, #2494

Astronomy and Astrophysics

Astronomy

1

X-Ray, Soft Gamma-Ray Repeaters

Scientific paper

We analysed 22.5 ks of XRT data in Photon Counting (PC) mode of the new soft gamma-ray repeater candidate SGR 1833-0832 (Gelbord et al. GCN Circ. 10526, 10531). The data were barycentered using the X-ray position reported in Evans et al. (GCN Circ. 10530). We detect strong pulsations from the X-ray source in the 2-10 keV band at 7.5653(5) sec. The background subtracted pulsed fraction, defined as the semiamplitude of sinusoidal modulation divided by the mean source count rate, is 64+/-4%.

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