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Swift-XRT spectra of GRB 250309B/IceCube-250309A — Source 26

Last updated at 2025-03-11 at 12:25:18 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 26

PC mode. Mean photon arrival: T0+74724 s

N_H (Galactic)	3.07 × 10²⁰ cm^-2
N_H (intrinsic)	1.4 (+8.39 × 10³, -1.4) × 10¹⁹ cm^-2
z of absorber	0
Photon index/th>	24.71 (+??, -27.71)
Flux (0.3-10 keV) (Observed)	6.3 (+1.00 × 10¹⁶, -6.3) × 10^-16 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.4 (+1.4, -1.4) × 10^-15 erg cm^-2 s^-1
Counts to flux (obs)	6.02 × 10^-13 erg cm^-2 ct^-1
Counts to flux (unabs)	1.30 × 10^-12 erg cm^-2 ct^-1
W-stat What's this?(dof)	2.24 (2)
Spectrum exposure	8.2 ks