Unusually strong X-ray pulsations from Swift J1834.9-0846

Details Unusually strong X-ray pulsations from Swift J1834.9-0846 Unusually strong X-ray pulsations from Swift J1834.9-0846

Aug 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011atel.3600....1k&link_type=abstract

The Astronomer's Telegram, #3600

Astronomy and Astrophysics

Astronomy

X-Ray, Neutron Star, Soft Gamma-Ray Repeater, Transient, Pulsar

Scientific paper

The newest magnetar candidate Swift J1834.9-0846 (D'Elia et al. GCN Circ. #12253, Guiriec et al. #12255) was observed with Chandra/ACIS-S for 13 ks on 2011 August 22, with time resolution of 0.44 s. The timing analysis of the barycentered data reveals an unusually high pulsed fraction at the previously reported frequency of 0.402850 Hz (Gogus et al. ATels #3542, #3576). The pulsed fraction in 2-10 keV for the 733 events extracted from r=1'' circular aperture, centered on the source, exceeds 80%.

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