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Swift-XRT spectra of GRB 080409

Last updated after receiving ObsID 00308812002, version 11.

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Time-averaged spectrum (T0 + 87 to 46283 s)

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PC mode spectrum of GRB 080409

PC mode. Mean photon arrival: T0+6842 s

NH (Galactic)2.3 × 1021 cm-2
NH (intrinsic)3.0 (+2.0, -1.8) × 1021 cm-2
z of absorber0
Photon index2.07 (+0.39, -0.37)
Flux (0.3-10 keV)
(Observed)
7.1 (+1.4, -1.1) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.33 (+0.51, -0.23) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.5 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)8.5 × 10-11 erg cm-2 ct-1
C-stat (dof)125.88 (173)
Exposure time19.7 ks

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Late Time spectrum (T0 + 4643 to 46283 s)

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PC mode spectrum of GRB 080409

PC mode. Mean photon arrival: T0+15168 s

NH (Galactic)2.3 × 1021 cm-2
NH (intrinsic)3.4 (+3.2, -2.7) × 1021 cm-2
z of absorber0
Photon index2.16 (+0.56, -0.58)
Flux (0.3-10 keV)
(Observed)
4.49 (+1.48, -0.97) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
9.0 (+6.3, -1.2) × 10-13 erg cm-2 s-1
Counts to flux (obs)4.4 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)8.8 × 10-11 erg cm-2 ct-1
C-stat (dof)60.97 (88)
Exposure time18.8 ks

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