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Swift-XRT spectra of GRB 120811A

Last updated after receiving ObsID 00530581006, version 17

Data were analysed using HEASOFT version 6.32

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Time-averaged spectrum (T0 + 5628 to 24916 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+16060 s

NH (Galactic)2.91 × 1021 cm-2
NH (intrinsic)9 (+7, -5) × 1021 cm-2
z of absorber0
Photon index1.9 (+0.6, -0.5)
Flux (0.3-10 keV)
(Observed)		2.9 (+0.7, -0.5) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)		5.2 (+3.6, -1.3) × 10-12 erg cm-2 s-1
Counts to flux (obs)5.35 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)9.77 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?		113.52 (120)
Spectrum exposure3.9 ks