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Swift-XRT spectra of GRB 250917B — Source 6

Last updated at 2025-09-19 at 05:46:26 UTC

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Time-averaged spectrum (T0 + 141 to 144927 s)

Download spectral files for Time-averaged spectrum.

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PC mode spectrum of GRB 250917B

PC mode. Mean photon arrival: T0+32894 s

NH (Galactic)7.11 × 1021 cm-2
NH (intrinsic)1.05 (+2.32, -0.30) × 1024 cm-2
z of absorber0
Photon index/th>63.78 (+??, -66.78)
Flux (0.3-10 keV)
(Observed)
1.4 (+2.3, -1.2) × 10-14 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
5 (+5, -5) × 1045 erg cm-2 s-1
Counts to flux (obs)2.73 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)9.86 × 1048 erg cm-2 ct-1
W-stat
What's this?(dof)
1.37 (3)
Spectrum exposure9.5 ks