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Swift-XRT spectra of GRB 170531A

Last updated after receiving ObsID 00755343002, version 6

Data were analysed using HEASOFT version 6.26.1

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 254 to 44628 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+8825 s

NH (Galactic)1.20 × 1021 cm-2
NH (intrinsic)4 (+8, -4) × 1021 cm-2
z of absorber0
Photon index2.16 (+1.23, -0.83)
Flux (0.3-10 keV)
(Observed)
2.7 (+1.7, -1.0) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.8 (+11.9, -1.5) × 10-13 erg cm-2 s-1
Counts to flux (obs)3.88 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)7.01 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
41.98 (35)
Spectrum exposure6.2 ks

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Late Time spectrum (T0 + 4000 to 44628 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+27818 s

NH (Galactic)1.20 × 1021 cm-2
NH (intrinsic)0 (+1.49 × 1022, -0) cm-2
z of absorber0
Photon index0.07 (+2.39, -0.80)
Flux (0.3-10 keV)
(Observed)
5 (+5, -4) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
6 (+6, -4) × 10-13 erg cm-2 s-1
Counts to flux (obs)2.09 × 10-10 erg cm-2 ct-1
Counts to flux (unabs)2.26 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
11.92 (8)
Spectrum exposure5.7 ks

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