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Swift-XRT spectra of GRB 131227A

Last updated after receiving ObsID 00582184003, version 5

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 63 to 57010 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+128 s

NH (Galactic)2.95 × 1021 cm-2
NH (intrinsic)4.8 (+1.8, -1.5) × 1021 cm-2
z of absorber0
Photon index2.25 (+0.23, -0.21)
Flux (0.3-10 keV)
(Observed)
2.03 (+0.21, -0.20) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.38 (+1.05, -0.65) × 10-10 erg cm-2 s-1
Counts to flux (obs)3.79 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)8.18 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
249.41 (324)
Spectrum exposure154 s

PC mode. Mean photon arrival: T0+3162 s

NH (Galactic)2.95 × 1021 cm-2
NH (intrinsic)5.2 (+1.8, -1.6) × 1021 cm-2
z of absorber0
Photon index1.90 (+0.20, -0.19)
Flux (0.3-10 keV)
(Observed)
6.9 (+0.7, -0.6) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.16 (+0.17, -0.12) × 10-11 erg cm-2 s-1
Counts to flux (obs)4.84 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)8.11 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
275.67 (351)
Spectrum exposure10.4 ks

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Late Time spectrum (T0 + 4734 to 57010 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+10468 s

NH (Galactic)2.95 × 1021 cm-2
NH (intrinsic)7 (+5, -4) × 1021 cm-2
z of absorber0
Photon index2.1 (+0.5, -0.4)
Flux (0.3-10 keV)
(Observed)
1.49 (+0.33, -0.26) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.07 (+1.82, -0.58) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.56 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)9.37 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
128.06 (139)
Spectrum exposure9.2 ks

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