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Swift-XRT spectra of GRB 121226A

Last updated after receiving ObsID 00544027002, version 9.

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Time-averaged spectrum (T0 + 104 to 69145 s)

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PC mode spectrum of GRB 121226A

PC mode. Mean photon arrival: T0+5255 s

NH (Galactic)7.6 × 1020 cm-2
NH (intrinsic)1.2 (+0.4, -0.3) × 1022 cm-2
z of absorber0
Photon index2.3 (+0.4, -0.3)
Flux (0.3-10 keV)
(Observed)
8.9 (+1.5, -1.3) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.40 (+1.27, -0.45) × 10-12 erg cm-2 s-1
Counts to flux (obs)4 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)1.2 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
168.53 (194)
Spectrum exposure18.0 ks

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Late Time spectrum (T0 + 4039 to 69145 s)

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PC mode spectrum of GRB 121226A

PC mode. Mean photon arrival: T0+13069 s

NH (Galactic)7.6 × 1020 cm-2
NH (intrinsic)1.4 (+0.6, -0.6) × 1022 cm-2
z of absorber0
Photon index2.6 (+0.6, -0.6)
Flux (0.3-10 keV)
(Observed)
3.2 (+0.9, -0.6) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.20 (+1.56, -0.34) × 10-12 erg cm-2 s-1
Counts to flux (obs)4 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)1.5 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
82.53 (89)
Spectrum exposure17.3 ks

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