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Swift-XRT spectra of GRB 110319B

Last updated after receiving ObsID 00020158002, version 8

Data were analysed using HEASOFT version 6.35.2

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Time-averaged spectrum (T0 + 27690 to 35942 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+31956 s

NH (Galactic)2.92 × 1020 cm-2
NH (intrinsic)1.3 (+2.8, -1.3) × 1021 cm-2
z of absorber0
Photon index2.2 (+0.9, -0.7)
Flux (0.3-10 keV)
(Observed)		3.3 (+1.6, -1.1) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)		4.9 (+2.2, -1.4) × 10-13 erg cm-2 s-1
Counts to flux (obs)3.06 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.46 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?		35.32 (38)
Spectrum exposure5.0 ks