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Swift-XRT spectra of GRB 180620B

Last updated after receiving ObsID 00843211009, version 18

Data were analysed using HEASOFT version 6.32

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The spectral fits assume a redshift: 1.1175 (GCN 22823)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 89 to 22736 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+151 s

NH (Galactic)1.39 × 1020 cm-2
NH (intrinsic)9.8 (+0.7, -0.6) × 1021 cm-2
z of absorber1.1175
Photon index2.12 (+0.04, -0.04)
Flux (0.3-10 keV)
(Observed)
4.46 (+0.10, -0.10) × 10-9 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
6.34 (+0.14, -0.13) × 10-9 erg cm-2 s-1
Counts to flux (obs)3.21 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.56 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
585.89 (671)
Spectrum exposure237 s

PC mode. Mean photon arrival: T0+10226 s

NH (Galactic)1.39 × 1020 cm-2
NH (intrinsic)5.0 (+1.4, -1.3) × 1021 cm-2
z of absorber1.1175
Photon index1.83 (+0.09, -0.09)
Flux (0.3-10 keV)
(Observed)
1.95 (+0.12, -0.12) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.31 (+0.11, -0.11) × 10-11 erg cm-2 s-1
Counts to flux (obs)3.65 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.31 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
371.82 (431)
Spectrum exposure5.6 ks

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Late Time spectrum (T0 + 4252 to 22736 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+12761 s

NH (Galactic)1.39 × 1020 cm-2
NH (intrinsic)7.4 (+1.8, -1.6) × 1021 cm-2
z of absorber1.1175
Photon index1.92 (+0.11, -0.11)
Flux (0.3-10 keV)
(Observed)
1.467 (+0.105, -0.097) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.86 (+0.11, -0.10) × 10-11 erg cm-2 s-1
Counts to flux (obs)3.54 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.48 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
337.30 (391)
Spectrum exposure5.0 ks

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