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Swift-XRT spectra of GRB 250309B/IceCube-250309A — Source 8

Last updated at 2025-03-11 at 20:46:12 UTC

About these products.

Time-averaged spectrum (T0 + 63162 to 70248 s)

Download spectral files for Time-averaged spectrum.

Plots to download

PC mode spectrum of GRB 250309B/IceCube-250309A - source 8

PC mode. Mean photon arrival: T0+68471 s

N_H (Galactic)	3.37 × 10²⁰ cm^-2
N_H (intrinsic)	2.3 (+347.8, -2.3) × 10²³ cm^-2
z of absorber	0
Photon index/th>	-3.00 (+??, -3.00)
Flux (0.3-10 keV) (Observed)	4 (+1.00 × 10¹⁰, -4) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	4.8 (+29.2, -3.7) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	1.35 × 10^-7 erg cm^-2 ct^-1
Counts to flux (unabs)	1.75 × 10^-7 erg cm^-2 ct^-1
W-stat What's this?(dof)	2.66 (4)
Spectrum exposure	3.8 ks