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Swift-XRT spectra of GRB 250924A

Last updated after receiving ObsID 01351790001, version 3

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 189 to 34936 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+216 s

N_H (Galactic)	2.77 × 10²¹ cm^-2
N_H (intrinsic)	2.4 (+0.8, -0.8) × 10²¹ cm^-2
z of absorber	0
Photon index	4.0 (+0.4, -0.3)
Flux (0.3-10 keV) (Observed)	3.45 (+0.25, -0.23) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.5 (+1.9, -1.1) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	2.03 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	2.04 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	202.99 (236)
Spectrum exposure	80 s

PC mode. Mean photon arrival: T0+8719 s

N_H (Galactic)	2.77 × 10²¹ cm^-2
N_H (intrinsic)	0 (+7.09 × 10²⁰, -0) cm^-2
z of absorber	0
Photon index	2.06 (+0.20, -0.13)
Flux (0.3-10 keV) (Observed)	4.9 (+0.5, -0.5) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	7.4 (+0.9, -0.6) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.63 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.44 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	200.77 (232)
Spectrum exposure	8.5 ks

Late Time spectrum (T0 + 11000 to 34936 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+18777 s

N_H (Galactic)	2.77 × 10²¹ cm^-2
N_H (intrinsic)	3.5 (+15.4, -3.5) × 10²⁰ cm^-2
z of absorber	0
Photon index	2.16 (+0.38, -0.27)
Flux (0.3-10 keV) (Observed)	1.37 (+0.27, -0.24) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.2 (+0.6, -0.4) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.50 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.68 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	113.69 (132)
Spectrum exposure	7.5 ks