Swift observation of the AXP 4U 0142+61 following a bright X-ray burst

Details Swift observation of the AXP 4U 0142+61 following a bright X-ray burst Swift observation of the AXP 4U 0142+61 following a bright X-ray burst

Feb 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007atel..998....1c&link_type=abstract

The Astronomer's Telegram, #998

Astronomy and Astrophysics

Astronomy

1

X-Ray, Neutron Stars, Pulsars, Soft Gamma-Ray Repeaters

Scientific paper

Following the bright X-ray burst reported by Gavriil et al. (2007, ATel #993), Swift observed the anomalous X-ray pulsar 4U 0142+61 on Feb. 8th 2007 (36.7 hr after the burst). The XRT instrument collected 4844 s in Photon Counting (PC) mode and 138 s in Window Timing (WT) mode. The source is well detected at a piled-up rate of 2.7 c/s (corresponding to about 5 c/s of true rate). We extracted spectra for the two modes (in PC in an annulus 5-30 pixels wide to avoid pile-up) and fit them with the usual absorbed black body plus power law model.

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