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Swift-XRT spectra of GRB 180823A

Last updated after receiving ObsID 00855434002, version 6

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 332 to 63531 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+353 s

NH (Galactic)1.24 × 1020 cm-2
NH (intrinsic)5.4 (+119.5, -5.4) × 1019 cm-2
z of absorber0
Photon index2.1 (+0.6, -0.3)
Flux (0.3-10 keV)
(Observed)
6.9 (+1.6, -1.7) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
7.3 (+1.9, -1.6) × 10-11 erg cm-2 s-1
Counts to flux (obs)2.85 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.01 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
56.80 (85)
Spectrum exposure46 s

PC mode. Mean photon arrival: T0+16188 s

NH (Galactic)1.24 × 1020 cm-2
NH (intrinsic)9 (+5, -4) × 1020 cm-2
z of absorber0
Photon index2.05 (+0.19, -0.18)
Flux (0.3-10 keV)
(Observed)
2.28 (+0.25, -0.22) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.84 (+0.26, -0.24) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.20 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.99 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
206.31 (258)
Spectrum exposure12.3 ks

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Late Time spectrum (T0 + 4001 to 63531 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+17920 s

NH (Galactic)1.24 × 1020 cm-2
NH (intrinsic)1.0 (+0.6, -0.5) × 1021 cm-2
z of absorber0
Photon index2.09 (+0.21, -0.20)
Flux (0.3-10 keV)
(Observed)
2.00 (+0.24, -0.21) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.58 (+0.26, -0.20) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.17 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.09 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
182.54 (240)
Spectrum exposure11.9 ks

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