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Swift-XRT spectra of GRB 151031A

Last updated after receiving ObsID 00662330008, version 10

Data were analysed using HEASOFT version 6.29

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The spectral fits assume a redshift: 1.167 (GCN 18540)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 443 to 37415 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+5849 s

NH (Galactic)2.62 × 1020 cm-2
NH (intrinsic)1.0 (+0.4, -0.3) × 1022 cm-2
z of absorber1.167
Photon index2.11 (+0.21, -0.20)
Flux (0.3-10 keV)
(Observed)
1.69 (+0.22, -0.19) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.41 (+0.30, -0.25) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.27 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.66 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
195.45 (222)
Spectrum exposure9.9 ks

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Late Time spectrum (T0 + 6210 to 37415 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+13263 s

NH (Galactic)2.62 × 1020 cm-2
NH (intrinsic)10 (+7, -5) × 1021 cm-2
z of absorber1.167
Photon index1.87 (+0.33, -0.30)
Flux (0.3-10 keV)
(Observed)
1.01 (+0.23, -0.19) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.30 (+0.23, -0.19) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.71 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.79 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
115.42 (113)
Spectrum exposure7.5 ks

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