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Swift-XRT spectra of GRB 250309B/IceCube-250309A — Source 19

Last updated at 2025-03-11 at 12:24:55 UTC

About these products.

Time-averaged spectrum (T0 + 46059 to 136018 s)

Download spectral files for Time-averaged spectrum.

Plots to download

PC mode spectrum of GRB 250309B/IceCube-250309A - source 19

PC mode. Mean photon arrival: T0+92000 s

N_H (Galactic)	3.06 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+3.19 × 10²¹, -0) cm^-2
z of absorber	0
Photon index	1.86 (+1.13, -0.92)
Flux (0.3-10 keV) (Observed)	6 (+7, -3) × 10^-14 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6 (+5, -4) × 10^-14 erg cm^-2 s^-1
Counts to flux (obs)	3.21 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.49 × 10^-11 erg cm^-2 ct^-1
W-stat What's this?(dof)	12.71 (8)
Spectrum exposure	8.2 ks