Swift Observations of the X-ray Dipper XB 1254-690

Details Swift Observations of the X-ray Dipper XB 1254-690 Swift Observations of the X-ray Dipper XB 1254-690

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008atel.1712....1m&link_type=abstract

The Astronomer's Telegram, #1712

Astronomy and Astrophysics

Astronomy

X-Ray, Binaries, Neutron Stars

Scientific paper

We report on the X-ray dipping source XB 1254-690 as observed in five SWIFT/XRT exposures. These observations occurred on 2007 June 10, August 7, August 8, October 29, and 2008 March 2. Using XSPEC v11, we fit the spectra with a power-law plus blackbody model in the 1.0-10.0 keV band. We allowed the neutral hydrogen column density to float and obtained values varying from 0.35 +/- 0.1 E+22 to 1.9 +/- 0.1 E+22 (90 percent confidence errors).

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