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Swift-XRT spectra of GRB 250309B/IceCube-250309A — Source 24

Last updated at 2025-03-11 at 12:25:00 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 24

PC mode. Mean photon arrival: T0+82490 s

N_H (Galactic)	2.96 × 10²⁰ cm^-2
N_H (intrinsic)	2.4 (+12.4, -1.0) × 10²² cm^-2
z of absorber	0
Photon index	10 (+55, -7)
Flux (0.3-10 keV) (Observed)	1.8 (+1.8, -1.2) × 10^-14 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.0 (+1.00 × 10¹², -2.0) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	1.50 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	1.67 × 10^-9 erg cm^-2 ct^-1
W-stat What's this?(dof)	3.59 (4)
Spectrum exposure	8.2 ks