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Swift-XRT spectra of GRB 170311A

Last updated after receiving ObsID 00741965001, version 7

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 108 to 56644 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+122 s

NH (Galactic)1.30 × 1021 cm-2
NH (intrinsic)1.2 (+4.5, -1.2) × 1021 cm-2
z of absorber0
Photon index2.45 (+1.66, -0.83)
Flux (0.3-10 keV)
(Observed)
5.4 (+3.1, -2.4) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
9.8 (+21.5, -4.4) × 10-11 erg cm-2 s-1
Counts to flux (obs)2.71 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.89 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
20.16 (30)
Spectrum exposure23 s

PC mode. Mean photon arrival: T0+4273 s

NH (Galactic)1.30 × 1021 cm-2
NH (intrinsic)1.8 (+2.0, -1.6) × 1021 cm-2
z of absorber0
Photon index1.56 (+0.30, -0.28)
Flux (0.3-10 keV)
(Observed)
1.53 (+0.29, -0.24) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.89 (+0.27, -0.23) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.84 × 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?
167.64 (198)
Spectrum exposure13.0 ks

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Late Time spectrum (T0 + 4779 to 56644 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+19834 s

NH (Galactic)1.30 × 1021 cm-2
NH (intrinsic)4 (+6, -3) × 1021 cm-2
z of absorber0
Photon index2.6 (+1.0, -0.7)
Flux (0.3-10 keV)
(Observed)
1.8 (+0.8, -0.5) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
5.0 (+7.5, -2.0) × 10-13 erg cm-2 s-1
Counts to flux (obs)3.04 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)8.46 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
38.13 (50)
Spectrum exposure11.6 ks

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