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Swift-XRT spectra of GRB 220518A

Last updated after receiving ObsID 01107050006, version 9

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 133 to 57993 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+3430 s

N_H (Galactic)	9.33 × 10¹⁹ cm^-2
N_H (intrinsic)	1.8 (+3.1, -1.8) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.83 (+0.14, -0.13)
Flux (0.3-10 keV) (Observed)	5.8 (+0.6, -0.5) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.2 (+0.4, -0.4) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.49 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.70 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	266.35 (296)
Spectrum exposure	8.6 ks

Late Time spectrum (T0 + 7254 to 57993 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+18232 s

N_H (Galactic)	9.33 × 10¹⁹ cm^-2
N_H (intrinsic)	1.6 (+75.1, -1.6) × 10¹⁹ cm^-2
z of absorber	0
Photon index	2.00 (+0.41, -0.23)
Flux (0.3-10 keV) (Observed)	6.9 (+1.4, -1.4) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	7.1 (+1.5, -1.2) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.18 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.28 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	61.37 (90)
Spectrum exposure	6.9 ks