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Swift-XRT spectra of GRB 131209A — Source 4

Last updated after receiving ObsID 00020333004, version 4

Data were analysed using HEASOFT version 6.15.1

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Time-averaged spectrum (T0 + 102743 to 114909 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+107593 s

NH (Galactic)2.99 × 1021 cm-2
NH (intrinsic)1.0 (+7.9, -1.0) × 1022 cm-2
z of absorber0
Photon index1.7 (+4.3, -1.1)
Flux (0.3-10 keV)
(Observed)		2.7 (+3.4, -1.7) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)		4.2 (+47.7, -2.2) × 10-13 erg cm-2 s-1
Counts to flux (obs)5.46 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)8.70 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?		1.44 (5)
Spectrum exposure3.0 ks