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Swift-XRT spectra of GRB 111229A

Last updated after receiving ObsID 00510736007, version 20

Data were analysed using HEASOFT version 6.35.2

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The spectral fits assume a redshift: 1.3805 (GCN 12777)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 86 to 22583 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+88 s

NH (Galactic)1.60 × 1021 cm-2
NH (intrinsic)5 (+39, -5) × 1021 cm-2
z of absorber1.3805
Photon index3.2 (+3.3, -1.3)
Flux (0.3-10 keV)
(Observed)
1.61 (+1.65, -0.88) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.5 (+15.4, -2.9) × 10-10 erg cm-2 s-1
Counts to flux (obs)2.05 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.73 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
6.52 (9)
Spectrum exposure5 s

PC mode. Mean photon arrival: T0+7027 s

NH (Galactic)1.60 × 1021 cm-2
NH (intrinsic)6 (+5, -4) × 1021 cm-2
z of absorber1.3805
Photon index1.94 (+0.15, -0.15)
Flux (0.3-10 keV)
(Observed)
5.6 (+0.6, -0.5) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
7.7 (+0.6, -0.6) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.67 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.03 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
278.38 (312)
Spectrum exposure6.7 ks

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Late Time spectrum (T0 + 4409 to 22583 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+8433 s

NH (Galactic)1.60 × 1021 cm-2
NH (intrinsic)5 (+5, -4) × 1021 cm-2
z of absorber1.3805
Photon index1.84 (+0.17, -0.16)
Flux (0.3-10 keV)
(Observed)
5.4 (+0.6, -0.5) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
7.1 (+0.6, -0.6) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.87 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.05 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
268.62 (293)
Spectrum exposure6.2 ks

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