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Swift-XRT spectra of GRB 250818B — Source 1

Last updated at 2025-08-18 at 05:28:43 UTC

xrtpipeline was called using the Swift 6.35.2 software

About these products.

Time-averaged spectrum (T0 + 1683 to 2287 s)

Download spectral files for Time-averaged spectrum.

Plots to download

PC mode spectrum of GRB 250818B - source 1

PC mode. Mean photon arrival: T0+1993 s

N_H (Galactic)	6.49 × 10²⁰ cm^-2
N_H (intrinsic)	2.1 (+8.1, -2.1) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.67 (+0.26, -0.20)
Flux (0.3-10 keV) (Observed)	2.8 (+0.5, -0.4) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.1 (+0.4, -0.4) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	4.05 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.54 × 10^-11 erg cm^-2 ct^-1
W-stat What's this?(dof)	182.81 (173)
Spectrum exposure	604 s