Table A.3
Swift-XRT spectra of the nights during and after the H.E.S.S. campaign.
| T0 | φ0(1 keV) | Γsoft | Ebreak | Γhard | χ2/nd.o.f. | δt |
|
|
||||||
| 53 945.04 | 0.02 ± 0.001 | 2.84 ± 0.09 | - | - | 201.3/185 | 0.8 |
| 0.02 ± 0.002 | 2.72 ± 0.17 | 1.0 | 2.96 ± 0.19 | 200.8/184 | 0.8 | |
| 53 946.04 | 0.08 ± 0.001 | 2.40 ± 0.02 | 1.00 ± 0.06 | 2.70 ± 0.02 | 371.0/365 | 4.8 |
| 53 948.05 | 0.06 ± 0.003 | 2.59 ± 0.07 | 1.04 ± 0.32 | 2.84 ± 0.10 | 87.4/90 | 0.4 |
| 53 949.00 | 0.05 ± 0.001 | 2.58 ± 0.03 | 1.18 ± 0.15 | 2.84 ± 0.05 | 180.1/193 | 1.8 |
| 53 950.06 | 0.06 ± 0.001 | 2.37 ± 0.04 | 1.01 ± 0.10 | 2.70 ± 0.04 | 242.4/202 | 1.6 |
| 53 952.13 | 0.04 ± 0.001 | 2.73 ± 0.03 | - | - | 77.0/94 | 0.5 |
| 0.04 ± 0.001 | 2.62 ± 0.06 | 1.0 | 2.91 ± 0.08 | 71.0/93 | 0.5 | |
| 53 953.15 | 0.03 ± 0.001 | 2.74 ± 0.05 | - | - | 47.1/52 | 0.3 |
Notes. The start time of observations T0 (in MJD), the flux normalization φ0 at 1 keV (in cm-2 s-1 keV-1), the photon indices below (Γsoft) and above (Γhard) a spectral break (Ebreak in keV), the χ2 over numbers of degree of freedom (nd.o.f.) and the live time of each pointing (in ks) are listed. Where no break energy is indicated, the third column provides the photon index over the whole spectrum. For the pointings on MJD 53 945 and MJD 53 952, the results of fits with a power law and with a broken power law with fixed break energy are shown. For the pointing on MJD 53 953, a fit with a broken power law did not yield a satisfactory result, even when fixing the break energy.
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