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Swift-XRT spectra of GRB 250917B — Source 1

Last updated at 2025-09-19 at 05:46:44 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+59393 s

N_H (Galactic)	7.33 × 10²¹ cm^-2
N_H (intrinsic)	0 (+4.37 × 10²¹, -0) cm^-2
z of absorber	0
Photon index	3.20 (+1.20, -0.45)
Flux (0.3-10 keV) (Observed)	1.4 (+0.6, -0.4) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8 (+8, -3) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	2.53 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	1.41 × 10^-10 erg cm^-2 ct^-1
W-stat What's this?(dof)	30.31 (39)
Spectrum exposure	9.5 ks