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Swift-XRT spectra of GRB 200109A

Last updated after receiving ObsID 00948361001, version 7

Data were analysed using HEASOFT version 6.26.1

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 109 to 28388 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+130 s

NH (Galactic)3.98 × 1021 cm-2
NH (intrinsic)5 (+4, -3) × 1021 cm-2
z of absorber0
Photon index1.37 (+0.31, -0.28)
Flux (0.3-10 keV)
(Observed)
6.3 (+1.0, -0.9) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
8.19 (+1.28, -0.96) × 10-10 erg cm-2 s-1
Counts to flux (obs)6.16 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)8.05 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
208.38 (290)
Spectrum exposure48 s

PC mode. Mean photon arrival: T0+1238 s

NH (Galactic)3.98 × 1021 cm-2
NH (intrinsic)3.2 (+2.9, -2.4) × 1021 cm-2
z of absorber0
Photon index1.67 (+0.32, -0.30)
Flux (0.3-10 keV)
(Observed)
4.1 (+0.7, -0.6) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
5.89 (+1.09, -0.75) × 10-12 erg cm-2 s-1
Counts to flux (obs)5.39 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)7.74 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
155.35 (203)
Spectrum exposure6.5 ks

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Late Time spectrum (T0 + 11719 to 28388 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+18723 s

NH (Galactic)3.98 × 1021 cm-2
NH (intrinsic)3 (+44, -3) × 1021 cm-2
z of absorber0
Photon index0.6 (+2.2, -1.1)
Flux (0.3-10 keV)
(Observed)
2.9 (+2.6, -1.8) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.1 (+2.0, -1.4) × 10-13 erg cm-2 s-1
Counts to flux (obs)1.04 × 10-10 erg cm-2 ct-1
Counts to flux (unabs)1.13 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
8.55 (8)
Spectrum exposure5.0 ks

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