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Swift-XRT spectra of GRB 250309B/IceCube-250309A — Source 1

Last updated at 2025-03-11 at 20:35:05 UTC

About these products.

Time-averaged spectrum (T0 + 12767 to 170300 s)

Download spectral files for Time-averaged spectrum.

Plots to download

PC mode spectrum of GRB 250309B/IceCube-250309A - source 1

PC mode. Mean photon arrival: T0+89991 s

N_H (Galactic)	5.10 × 10²⁰ cm^-2
N_H (intrinsic)	1.3 (+4.1, -1.3) × 10²² cm^-2
z of absorber	0
Photon index	1.7 (+2.8, -1.8)
Flux (0.3-10 keV) (Observed)	4.8 (+5.2, -2.9) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	7 (+7, -4) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	6.38 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	1.00 × 10^-10 erg cm^-2 ct^-1
W-stat What's this?(dof)	10.08 (6)
Spectrum exposure	2.7 ks