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Table 3.
Spectral fit results for SWIFT J004420.1+413702.
| Time | Instrument | NH | Γ | Norm | Red. χ2 | d.o.f. |
|---|---|---|---|---|---|---|
| (1021 cm−2) | (ph keV−1 cm−2 s−1 at 1 keV) | |||||
| NH and Γ free | ||||||
| June 2015 | EPIC pn/MOS1 | 1.3 ± 0.1 | 1.8 ± 0.1 | (1.1 ± 0.1)e–4 | 0.97 | 447 |
| August 2015 | EPIC pn/MOS1 | 1.1 ± 0.2 | 1.7 ± 0.1 | (9.6 ± 0.1)e–5 | 1.1 | 191 |
| October 2015 | ACIS-I | 1.8 ± 1.2 | 1.9 ± 0.2 | (8.7 ± 2.2)e–5 | 1.5 | 44 |
| January 2016 | EPIC pn/MOS2 | 0.5 ± 0.3 | 1.6 ± 0.2 | (1.3 ± 0.2)e–5 | 0.92 | 57 |
| NH fixed to Galactic foreground NH | ||||||
| June 2015 | EPIC pn/MOS1 | 0.7 | 1.6 ± 0.1 | (8.5 ± 0.2)e–5 | 1.22 | 448 |
| August 2015 | EPIC pn/MOS1 | 0.7 | 1.5 ± 0.1 | (8.1 ± 0.3)e–5 | 1.2 | 192 |
| October 2015 | ACIS-I | 0.7 | 1.7 ± 0.2 | (6.7 ± 0.5)e–5 | 1.5 | 45 |
| January 2016 | EPIC pn/MOS2 | 0.7 | 1.7 ± 0.1 | (1.4 ± 0.1)e–5 | 0.93 | 58 |
| Photon index frozen to Γ = 1.7 | ||||||
| June 2015 | EPIC pn/MOS1 | 1.0 ± 0.1 | 1.7 | (0.9 ± 0.1)e–4 | 1.03 | 448 |
| August 2015 | EPIC pn/MOS1 | 1.1 ± 0.1 | 1.7 | (1.0 ± 0.1)e–4 | 1.1 | 192 |
| October 2015 | ACIS-I | 0.8 ± 0.6 | 1.7 | (6.5 ± 0.6)e–5 | 1.5 | 45 |
| January 2016 | EPIC pn/MOS2 | 0.6 ± 0.2 | 1.7 | (1.4 ± 0.2)e–5 | 0.92 | 58 |
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