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Swift-XRT spectra of GRB 250901A

Last updated after receiving ObsID 03000066001, version 3

Data were analysed using HEASOFT version 6.35.2

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Add time-sliced spectrum.

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 2593 to 4210 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+3329 s

N_H (Galactic)	1.91 × 10²⁰ cm^-2
N_H (intrinsic)	9 (+9, -7) × 10²⁰ cm^-2
z of absorber	0
Photon index	2.2 (+0.4, -0.3)
Flux (0.3-10 keV) (Observed)	4.4 (+0.9, -0.7) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.7 (+1.0, -0.9) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.00 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.91 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	82.98 (135)
Spectrum exposure	1.6 ks

Late Time spectrum (T0 + 4002 to 4210 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+4098 s

N_H (Galactic)	1.91 × 10²⁰ cm^-2
N_H (intrinsic)	4 (+73, -4) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.2 (+3.5, -1.2)
Flux (0.3-10 keV) (Observed)	9 (+39, -8) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	9.8 (+10.4, -6.3) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	9.88 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	1.03 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	13.02 (12)
Spectrum exposure	208 s