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Swift-XRT spectra of GRB 220813A

Last updated after receiving ObsID 01120270006, version 9

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 96 to 29970 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+159 s

N_H (Galactic)	2.32 × 10²⁰ cm^-2
N_H (intrinsic)	1.23 (+0.31, -0.29) × 10²¹ cm^-2
z of absorber	0
Photon index	2.51 (+0.13, -0.13)
Flux (0.3-10 keV) (Observed)	3.57 (+0.21, -0.20) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.7 (+0.3, -0.5) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	2.65 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.27 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	286.52 (353)
Spectrum exposure	149 s

PC mode. Mean photon arrival: T0+4764 s

N_H (Galactic)	2.32 × 10²⁰ cm^-2
N_H (intrinsic)	1.7 (+2.8, -1.7) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.97 (+0.13, -0.12)
Flux (0.3-10 keV) (Observed)	5.9 (+0.5, -0.4) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.5 (+0.4, -0.4) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.34 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.69 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	290.87 (328)
Spectrum exposure	8.2 ks

Late Time spectrum (T0 + 4933 to 29970 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+10841 s

N_H (Galactic)	2.32 × 10²⁰ cm^-2
N_H (intrinsic)	1.6 (+4.7, -1.6) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.74 (+0.19, -0.16)
Flux (0.3-10 keV) (Observed)	2.9 (+0.4, -0.3) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.13 (+0.32, -0.26) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.79 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.06 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	171.23 (232)
Spectrum exposure	6.8 ks