Swift Observations of Swift J1357.2-0933

Details Swift Observations of Swift J1357.2-0933 Swift Observations of Swift J1357.2-0933

Feb 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011atel.3142....1k&link_type=abstract

The Astronomer's Telegram, #3142

Other

1

X-Ray, Binary, Transient

Scientific paper

The newly discovered X-ray transient source Swift J1357.2-0933 (Krimm et al., ATel #3138) was observed by Swift on 1 Feb 2011 (MJD 55593) and 2 Feb 2011. It was detected as a strong source in both Swift/XRT and UVOT. The XRT observed in Photon Counting mode on 1 Feb 2011 and a position was determined at: RA (J2000): 13:57:16.92 = 209.32049 (deg) Dec (J2000): -09:32:39.3 = -9.54424 (deg) 90% Error radius: 2.1" The 2 Feb 2011 observation was in Windowed Timing mode and the data are well fitted by an absorbed power-law model (Reduced chi2 = 1.06) with the following parameters: N_H = 1.2 ± 0.7 x 1020 cm-2 Gamma = 1.56 ± 0.03 Flux (0.3-10 keV) = 4.2 ± 0.1 x 10-10 erg/s/cm-2 There is no evidence of any lines or other deviations from a smooth spectrum.

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