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Swift-XRT spectra of GRB 210722A

Last updated after receiving ObsID 01061223008, version 5

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 91 to 57480 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+163 s

N_H (Galactic)	2.23 × 10²⁰ cm^-2
N_H (intrinsic)	1.9 (+0.9, -0.9) × 10²⁰ cm^-2
z of absorber	0
Photon index	2.18 (+0.05, -0.05)
Flux (0.3-10 keV) (Observed)	8.72 (+0.24, -0.23) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	9.93 (+0.24, -0.23) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	2.95 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.36 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	503.19 (579)
Spectrum exposure	294 s

PC mode. Mean photon arrival: T0+5362 s

N_H (Galactic)	2.23 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+1.90 × 10²⁰, -0) cm^-2
z of absorber	0
Photon index	1.76 (+0.10, -0.05)
Flux (0.3-10 keV) (Observed)	1.882 (+0.085, -0.117) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.969 (+0.088, -0.206) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	3.71 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.88 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	372.22 (396)
Spectrum exposure	6.5 ks

Late Time spectrum (T0 + 4505 to 57480 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+11246 s

N_H (Galactic)	2.23 × 10²⁰ cm^-2
N_H (intrinsic)	6 (+4, -4) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.98 (+0.17, -0.17)
Flux (0.3-10 keV) (Observed)	6.3 (+0.6, -0.6) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	7.5 (+0.6, -0.6) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.40 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.04 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	251.65 (278)
Spectrum exposure	5.5 ks