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Swift-XRT spectra of GRB 220813A

Last updated after receiving ObsID 01120270001, version 5

Data were analysed using HEASOFT version 6.29

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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)	1.14 (+0.29, -0.27) × 10²¹ cm^-2
z of absorber	0
Photon index	2.53 (+0.13, -0.13)
Flux (0.3-10 keV) (Observed)	3.55 (+0.20, -0.19) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.6 (+0.3, -0.4) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	2.63 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.18 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	318.27 (349)
Spectrum exposure	149 s

PC mode. Mean photon arrival: T0+4752 s

N_H (Galactic)	2.32 × 10²⁰ cm^-2
N_H (intrinsic)	2.6 (+2.9, -2.6) × 10²⁰ cm^-2
z of absorber	0
Photon index	2.00 (+0.13, -0.13)
Flux (0.3-10 keV) (Observed)	5.7 (+0.4, -0.4) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.4 (+0.4, -0.3) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.23 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.64 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	307.94 (330)
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+10818 s

N_H (Galactic)	2.32 × 10²⁰ cm^-2
N_H (intrinsic)	1.0 (+4.7, -1.0) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.75 (+0.20, -0.14)
Flux (0.3-10 keV) (Observed)	2.8 (+0.3, -0.3) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.03 (+0.31, -0.26) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.68 × 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?	181.09 (234)
Spectrum exposure	6.8 ks