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Swift-XRT spectra of GRB 200228B

Last updated after receiving ObsID 00958733001, version 3

Data were analysed using HEASOFT version 6.26.1

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 143 to 18232 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+7159 s

NH (Galactic)6.39 × 1020 cm-2
NH (intrinsic)1.5 (+0.8, -0.6) × 1022 cm-2
z of absorber0
Photon index3.0 (+0.8, -0.7)
Flux (0.3-10 keV)
(Observed)
9.5 (+2.6, -2.0) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
6.1 (+10.9, -2.5) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.54 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)2.27 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
84.28 (82)
Spectrum exposure4.6 ks

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Late Time spectrum (T0 + 4574 to 18232 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+8700 s

NH (Galactic)6.39 × 1020 cm-2
NH (intrinsic)1.2 (+0.8, -0.6) × 1022 cm-2
z of absorber0
Photon index2.7 (+0.9, -0.8)
Flux (0.3-10 keV)
(Observed)
8.7 (+3.3, -2.2) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.3 (+7.2, -1.1) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.83 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)1.44 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
63.49 (67)
Spectrum exposure4.5 ks

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