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Swift-XRT spectra of GRB 250309B/IceCube-250309A — Source 17

Last updated at 2025-03-11 at 12:25:18 UTC

About these products.

Time-averaged spectrum (T0 + 46059 to 131152 s)

Download spectral files for Time-averaged spectrum.

Plots to download

PC mode spectrum of GRB 250309B/IceCube-250309A - source 17

PC mode. Mean photon arrival: T0+89297 s

N_H (Galactic)	3.04 × 10²⁰ cm^-2
N_H (intrinsic)	9.1 (+15.9, -7.6) × 10²¹ cm^-2
z of absorber	0
Photon index	3.5 (+3.4, -1.7)
Flux (0.3-10 keV) (Observed)	1.34 (+1.16, -0.57) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.3 (+0.6, -1.0) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	1.98 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	1.89 × 10^-10 erg cm^-2 ct^-1
W-stat What's this?(dof)	21.46 (20)
Spectrum exposure	8.1 ks