Table 1
Fitting results of Swift/XRT observations of PKS 1424−418.
| Time | Time | Net Exp. Time | Photon Index | Fluxa 0.3−10.0 keV | 
(d.o.f.)/Cash |
| (UT) | (MJD) | (sec) | (10-12 erg cm-2 s-1) | ||
|
|
|||||
| 2005-Apr.-19 | 53 479 | 2249 | 1.35 ± 0.22 | 3.34 ± 0.62 | Cash |
| 2005-Apr.-23 | 53 483 | 1543 | 1.54 ± 0.41 | 1.73 ± 0.47 | Cash |
| 2006-Jun.-18 | 53 904 | 3784 | 1.37 ± 0.17 | 4.28 ± 0.49 | 0.727 (11) |
| 2010-Feb.-11 | 55 238 | 3646 | 1.49 ± 0.24 | 3.77 ± 0.75 | 0.762(9) |
| 2010-May-12 | 55 328 | 1958 | 1.70 ± 0.21 | 5.80 ± 0.90 | 0.796 (9) |
| 2010-May-13 | 55 329 | 1279 | 1.75 ± 0.24 | 4.25 ± 0.84 | Cash |
| 2010-May-14 | 55 330.5 | 1963 | 1.99 ± 0.20 | 5.25 ± 0.63 | 0.803 (10) |
| 2010-May-14 | 55 330.6 | 951 | 1.78 ± 0.20 | 7.89 ± 0.72 | Cash |
| 2010-May-15 | 55 331 | 1938 | 1.68 ± 0.21 | 4.45 ± 0.71 | Cash |
| 2010-May-16 | 55 332 | 3833 | 1.82 ± 0.18 | 4.29 ± 0.54 | 0.868 (13) |
| 2010-Sep.-30 | 55 469 | 5152 | 1.47 ± 0.15 | 3.80 ± 0.41 | 1.008 (15) |
| 2011-May-07 | 55 688 | 3913 | 1.80 ± 0.24 | 3.41 ± 0.55 | 0.920 (10) |
| 2011-May-10 | 55 691 | 3932 | 1.61 ± 0.23 | 3.93 ± 0.46 | 1.080 (9) |
Notes. Columns report, from left to right: observation time, net exposure time, observed photon index and flux. The last column indicates the method used to perform the spectral analysis: reduced χ2 and, in parentheses, the degrees of freedom, or the Cash method when the statistics were low. Results were obtained considering an absorbed power-law model with NH fixed to Galactic absorption in the direction of the source.
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