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Swift-XRT spectra of GRB 230420A

Last updated after receiving ObsID 01164980002, version 23

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 98 to 90458 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+125 s

N_H (Galactic)	1.71 × 10²⁰ cm^-2
N_H (intrinsic)	2.8 (+2.5, -2.2) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.54 (+0.09, -0.09)
Flux (0.3-10 keV) (Observed)	8.0 (+0.5, -0.5) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8.4 (+0.4, -0.3) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	4.08 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.32 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	453.74 (481)
Spectrum exposure	102 s

PC mode. Mean photon arrival: T0+7102 s

N_H (Galactic)	1.71 × 10²⁰ cm^-2
N_H (intrinsic)	2.4 (+6.5, -2.4) × 10²⁰ cm^-2
z of absorber	0
Photon index	2.00 (+0.27, -0.22)
Flux (0.3-10 keV) (Observed)	2.13 (+0.33, -0.29) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.36 (+0.29, -0.27) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.29 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.66 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	177.90 (180)
Spectrum exposure	8.1 ks

Late Time spectrum (T0 + 4479 to 90458 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+20891 s

N_H (Galactic)	1.71 × 10²⁰ cm^-2
N_H (intrinsic)	1.8 (+2.0, -1.5) × 10²¹ cm^-2
z of absorber	0
Photon index	2.5 (+0.7, -0.6)
Flux (0.3-10 keV) (Observed)	4.7 (+1.6, -1.1) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8.3 (+2.6, -2.1) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	2.79 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.95 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	70.22 (81)
Spectrum exposure	7.1 ks