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Swift-XRT spectra of GRB 250917B — Source 8

Last updated at 2025-09-19 at 05:46:06 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+108636 s

NH (Galactic)7.11 × 1021 cm-2
NH (intrinsic)0 (+??, -0) cm-2
z of absorber0
Photon index/th>-2.50 (+??, -2.50)
Flux (0.3-10 keV)
(Observed)
2.1 (+1.00 × 1095, -100000000000000002021887912715594698857609632321435774113777685620800400499816430935869782753280.0) × 10-95 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.1 (+1.00 × 1095, -100000000000000002021887912715594698857609632321435774113777685620800400499816430935869782753280.0) × 10-95 erg cm-2 s-1
Counts to flux (obs)1.60 × 10-91 erg cm-2 ct-1
Counts to flux (unabs)1.60 × 10-91 erg cm-2 ct-1
W-stat
What's this?(dof)
5.01 (2)
Spectrum exposure9.5 ks