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Swift-XRT spectra of GRB 051211B

Last updated after receiving ObsID 00020025008, version 15

Data were analysed using HEASOFT version 6.32

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Time-averaged spectrum (T0 + 10784 to 82697 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+10808 s

NH (Galactic)4.64 × 1021 cm-2
NH (intrinsic)1.5 (+7.0, -1.5) × 1022 cm-2
z of absorber0
Photon index2.4 (+3.5, -2.1)
Flux (0.3-10 keV)
(Observed)
4.6 (+5.7, -2.6) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.5 (+1.00 × 1010, -1.1) × 10-10 erg cm-2 s-1
Counts to flux (obs)5.47 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)1.76 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
0.76 (3)
Spectrum exposure54 s

PC mode. Mean photon arrival: T0+34845 s

NH (Galactic)4.64 × 1021 cm-2
NH (intrinsic)9.1 (+16.9, -9.1) × 1020 cm-2
z of absorber0
Photon index1.96 (+0.26, -0.24)
Flux (0.3-10 keV)
(Observed)
8.1 (+1.2, -1.0) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.31 (+0.25, -0.15) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.23 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.85 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
189.90 (220)
Spectrum exposure26.8 ks