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Swift-XRT spectra of GRB 110808A

Last updated after receiving ObsID 00458918013, version 12

Data were analysed using HEASOFT version 6.32

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The spectral fits assume a redshift: 1.348 (GCN 12258)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 117 to 40737 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+142 s

NH (Galactic)1.07 × 1020 cm-2
NH (intrinsic)3.0 (+2.2, -1.9) × 1021 cm-2
z of absorber1.348
Photon index3.05 (+0.31, -0.27)
Flux (0.3-10 keV)
(Observed)
2.84 (+0.27, -0.25) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.1 (+0.9, -0.6) × 10-10 erg cm-2 s-1
Counts to flux (obs)2.34 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.38 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
179.80 (190)
Spectrum exposure74 s

PC mode. Mean photon arrival: T0+9817 s

NH (Galactic)1.07 × 1020 cm-2
NH (intrinsic)0 (+2.44 × 1021, -0) cm-2
z of absorber1.348
Photon index2.22 (+0.31, -0.14)
Flux (0.3-10 keV)
(Observed)
1.43 (+0.17, -0.21) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.47 (+0.20, -0.15) × 10-12 erg cm-2 s-1
Counts to flux (obs)2.89 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)2.97 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
130.60 (134)
Spectrum exposure7.7 ks

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Late Time spectrum (T0 + 4001 to 40737 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+18294 s

NH (Galactic)1.07 × 1020 cm-2
NH (intrinsic)8 (+6, -5) × 1021 cm-2
z of absorber1.348
Photon index2.5 (+0.5, -0.4)
Flux (0.3-10 keV)
(Observed)
6.0 (+1.4, -1.1) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
9.5 (+3.6, -2.0) × 10-13 erg cm-2 s-1
Counts to flux (obs)2.59 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.07 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
70.94 (91)
Spectrum exposure7.2 ks

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