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Swift-XRT spectra of GRB 130831B

Last updated after receiving ObsID 00568855001, version 9

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 136 to 35427 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+5370 s

NH (Galactic)7.84 × 1020 cm-2
NH (intrinsic)1.1 (+0.5, -0.5) × 1021 cm-2
z of absorber0
Photon index1.92 (+0.15, -0.14)
Flux (0.3-10 keV)
(Observed)
1.261 (+0.109, -0.100) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.66 (+0.12, -0.11) × 10-11 erg cm-2 s-1
Counts to flux (obs)3.62 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.76 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
343.90 (356)
Spectrum exposure6.8 ks

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Late Time spectrum (T0 + 5104 to 35427 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+12891 s

NH (Galactic)7.84 × 1020 cm-2
NH (intrinsic)8 (+8, -7) × 1020 cm-2
z of absorber0
Photon index1.77 (+0.23, -0.22)
Flux (0.3-10 keV)
(Observed)
4.1 (+0.6, -0.5) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
5.0 (+0.6, -0.4) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.85 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.71 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
199.41 (227)
Spectrum exposure5.6 ks

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