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Swift-XRT spectra of GRB 250309B/IceCube-250309A — Source 12

Last updated at 2025-03-11 at 20:46:34 UTC

About these products.

Time-averaged spectrum (T0 + 35025 to 70248 s)

Download spectral files for Time-averaged spectrum.

Plots to download

PC mode spectrum of GRB 250309B/IceCube-250309A - source 12

PC mode. Mean photon arrival: T0+59666 s

N_H (Galactic)	3.57 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+5.45 × 10²², -0) cm^-2
z of absorber	0
Photon index	1.4 (+11.7, -1.5)
Flux (0.3-10 keV) (Observed)	1.2 (+4.5, -1.1) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.25 (+2.79, -0.97) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	4.02 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.20 × 10^-11 erg cm^-2 ct^-1
W-stat What's this?(dof)	3.41 (3)
Spectrum exposure	4.0 ks