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Swift-XRT spectra of GRB 250309B/IceCube-250309A — Source 2

Last updated at 2025-03-11 at 20:30:00 UTC

About these products.

Time-averaged spectrum (T0 + 18348 to 18484 s)

Download spectral files for Time-averaged spectrum.

Plots to download

PC mode spectrum of GRB 250309B/IceCube-250309A - source 2

PC mode. Mean photon arrival: T0+18446 s

N_H (Galactic)	5.23 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+4.54 × 10²¹, -0) cm^-2
z of absorber	0
Photon index	1.2 (+1.2, -1.5)
Flux (0.3-10 keV) (Observed)	3.5 (+8.7, -2.2) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	4.1 (+3.9, -2.6) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.54 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.27 × 10^-11 erg cm^-2 ct^-1
W-stat What's this?(dof)	6.28 (2)
Spectrum exposure	135 s