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Swift-XRT spectra of GRB 250917B — Source 3

Last updated at 2025-09-19 at 05:46:34 UTC

About these products.

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

Download spectral files for Time-averaged spectrum.

Plots to download

PC mode spectrum of GRB 250917B

PC mode. Mean photon arrival: T0+68125 s

N_H (Galactic)	7.24 × 10²¹ cm^-2
N_H (intrinsic)	0 (+1.68 × 10²², -0) cm^-2
z of absorber	0
Photon index	1.06 (+1.41, -0.69)
Flux (0.3-10 keV) (Observed)	2.3 (+1.7, -1.2) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.7 (+1.9, -1.2) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	6.84 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	8.01 × 10^-11 erg cm^-2 ct^-1
W-stat What's this?(dof)	18.48 (16)
Spectrum exposure	9.5 ks