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Swift-XRT spectra of GRB 250309B/IceCube-250309A — Source 9

Last updated at 2025-03-11 at 20:46:04 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 9

PC mode. Mean photon arrival: T0+67876 s

N_H (Galactic)	3.33 × 10²⁰ cm^-2
N_H (intrinsic)	1.68 (+12.57, -0.26) × 10²² cm^-2
z of absorber	0
Photon index/th>	99.34 (+??, -102.34)
Flux (0.3-10 keV) (Observed)	1.4 (+1.5, -1.1) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	9 (+593, -9) × 10^-5 erg cm^-2 s^-1
Counts to flux (obs)	6.15 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.94 × 10^-2 erg cm^-2 ct^-1
W-stat What's this?(dof)	2.09 (3)
Spectrum exposure	3.8 ks