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Swift-XRT spectra of GRB 260909A — Source 4

Last updated at 2026-09-15 at 23:49:27 UTC

About these products.

Time-averaged spectrum (T0 + 137704 to 264701 s)

Download spectral files for Time-averaged spectrum.

Plots to download

PC mode spectrum of GRB 260909A

PC mode. Mean photon arrival: T0+245381 s

N_H (Galactic)	4.52 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+6.93 × 10²², -0) cm^-2
z of absorber	0
Photon index	0.7 (+1.6, -1.4)
Flux (0.3-10 keV) (Observed)	3.0 (+5.9, -2.3) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.1 (+7.0, -2.4) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	8.96 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	9.43 × 10^-11 erg cm^-2 ct^-1
W-stat What's this?(dof)	8.66 (4)
Spectrum exposure	2.9 ks