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Swift-XRT spectra of GRB 150831A

Last updated after receiving ObsID 00653838001, version 7

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 89 to 40111 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+134 s

NH (Galactic)1.14 × 1021 cm-2
NH (intrinsic)1.6 (+1.3, -1.1) × 1021 cm-2
z of absorber0
Photon index1.31 (+0.18, -0.17)
Flux (0.3-10 keV)
(Observed)
3.9 (+0.4, -0.4) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.4 (+0.3, -0.3) × 10-10 erg cm-2 s-1
Counts to flux (obs)5.23 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.98 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
333.15 (392)
Spectrum exposure109 s

PC mode. Mean photon arrival: T0+1676 s

NH (Galactic)1.14 × 1021 cm-2
NH (intrinsic)6.1 (+21.8, -6.1) × 1020 cm-2
z of absorber0
Photon index1.8 (+0.5, -0.4)
Flux (0.3-10 keV)
(Observed)
5.0 (+1.5, -1.2) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
6.1 (+1.4, -1.1) × 10-13 erg cm-2 s-1
Counts to flux (obs)4.00 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.92 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
100.51 (96)
Spectrum exposure11.7 ks

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Late Time spectrum (T0 + 4582 to 40111 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+6604 s

NH (Galactic)1.14 × 1021 cm-2
NH (intrinsic)0 (+3.60 × 1021, -0) cm-2
z of absorber0
Photon index1.4 (+1.0, -0.5)
Flux (0.3-10 keV)
(Observed)
1.4 (+0.8, -0.7) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.5 (+0.7, -0.6) × 10-13 erg cm-2 s-1
Counts to flux (obs)4.71 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.14 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
21.19 (18)
Spectrum exposure10.6 ks

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