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Swift-XRT spectra of GRB 220427A

Last updated after receiving ObsID 01104343007, version 6

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 181 to 68771 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+201 s

N_H (Galactic)	1.02 × 10²¹ cm^-2
N_H (intrinsic)	1.6 (+14.7, -1.6) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.94 (+0.48, -0.30)
Flux (0.3-10 keV) (Observed)	1.4 (+0.4, -0.3) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.7 (+0.4, -0.3) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	3.22 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.97 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	74.73 (110)
Spectrum exposure	37 s

PC mode. Mean photon arrival: T0+4003 s

N_H (Galactic)	1.02 × 10²¹ cm^-2
N_H (intrinsic)	6 (+5, -4) × 10²⁰ cm^-2
z of absorber	0
Photon index	2.00 (+0.15, -0.14)
Flux (0.3-10 keV) (Observed)	5.7 (+0.5, -0.5) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	7.6 (+0.5, -0.5) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.44 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.57 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	301.66 (342)
Spectrum exposure	10.6 ks

Late Time spectrum (T0 + 6112 to 68771 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+15881 s

N_H (Galactic)	1.02 × 10²¹ cm^-2
N_H (intrinsic)	1.6 (+1.3, -1.1) × 10²¹ cm^-2
z of absorber	0
Photon index	2.4 (+0.4, -0.4)
Flux (0.3-10 keV) (Observed)	1.11 (+0.22, -0.18) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.9 (+0.6, -0.3) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.01 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.23 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	123.36 (138)
Spectrum exposure	8.9 ks