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Swift-XRT spectra of GRB 251017A

Last updated after receiving ObsID 01404904003, version 4

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 115 to 39933 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+137 s

N_H (Galactic)	8.90 × 10²⁰ cm^-2
N_H (intrinsic)	5 (+5, -5) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.67 (+0.15, -0.15)
Flux (0.3-10 keV) (Observed)	5.5 (+0.5, -0.5) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.5 (+0.5, -0.5) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	3.92 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.59 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	321.77 (389)
Spectrum exposure	75 s

PC mode. Mean photon arrival: T0+3965 s

N_H (Galactic)	8.90 × 10²⁰ cm^-2
N_H (intrinsic)	1.0 (+0.8, -0.7) × 10²¹ cm^-2
z of absorber	0
Photon index	2.09 (+0.22, -0.21)
Flux (0.3-10 keV) (Observed)	9.9 (+1.3, -1.1) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.40 (+0.15, -0.13) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	3.47 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.90 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	225.29 (251)
Spectrum exposure	5.2 ks

Late Time spectrum (T0 + 4722 to 39933 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+13097 s

N_H (Galactic)	8.90 × 10²⁰ cm^-2
N_H (intrinsic)	2.3 (+2.5, -1.8) × 10²¹ cm^-2
z of absorber	0
Photon index	2.5 (+0.6, -0.5)
Flux (0.3-10 keV) (Observed)	1.4 (+0.4, -0.3) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.78 (+2.41, -0.55) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.10 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.39 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	66.32 (84)
Spectrum exposure	3.9 ks