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Swift-XRT spectra of GRB 260909A — Source 3

Last updated at 2026-09-12 at 11:44:08 UTC

About these products.

Time-averaged spectrum (T0 + 137704 to 253841 s)

Download spectral files for Time-averaged spectrum.

Plots to download

PC mode spectrum of GRB 260909A

PC mode. Mean photon arrival: T0+225998 s

N_H (Galactic)	4.46 × 10²⁰ cm^-2
N_H (intrinsic)	5.9 (+12.7, -3.0) × 10²² cm^-2
z of absorber	0
Photon index	5 (+6, -5)
Flux (0.3-10 keV) (Observed)	1.2 (+3.5, -0.8) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6 (+1.00 × 10¹¹, -6) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	3.40 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	1.85 × 10^-8 erg cm^-2 ct^-1
W-stat What's this?(dof)	5.00 (3)
Spectrum exposure	2.2 ks