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Swift-XRT spectra of GRB 220408A

Last updated after receiving ObsID 01101675004, version 9

Data were analysed using HEASOFT version 6.35.2

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Add time-sliced spectrum.

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 116 to 63632 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+9687 s

N_H (Galactic)	1.98 × 10²⁰ cm^-2
N_H (intrinsic)	1.6 (+0.9, -0.7) × 10²¹ cm^-2
z of absorber	0
Photon index	1.91 (+0.24, -0.23)
Flux (0.3-10 keV) (Observed)	4.8 (+0.7, -0.6) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.3 (+0.7, -0.6) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.74 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.87 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	185.08 (227)
Spectrum exposure	8.0 ks

Late Time spectrum (T0 + 6158 to 63632 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+21613 s

N_H (Galactic)	1.98 × 10²⁰ cm^-2
N_H (intrinsic)	2.3 (+1.5, -1.2) × 10²¹ cm^-2
z of absorber	0
Photon index	2.1 (+0.4, -0.4)
Flux (0.3-10 keV) (Observed)	1.19 (+0.28, -0.21) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.78 (+0.34, -0.29) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.47 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.17 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	94.05 (127)
Spectrum exposure	7.3 ks