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Swift-XRT spectra of GRB 121211A

Last updated after receiving ObsID 00541200004, version 7

Data were analysed using HEASOFT version 6.32

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The spectral fits assume a redshift: 1.023 (GCN 14059)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 95 to 121785 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+205 s

NH (Galactic)9.76 × 1019 cm-2
NH (intrinsic)1.27 (+0.08, -0.07) × 1022 cm-2
z of absorber1.023
Photon index1.90 (+0.04, -0.03)
Flux (0.3-10 keV)
(Observed)
4.31 (+0.09, -0.09) × 10-9 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
5.87 (+0.11, -0.11) × 10-9 erg cm-2 s-1
Counts to flux (obs)3.72 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.07 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
746.57 (737)
Spectrum exposure199 s

PC mode. Mean photon arrival: T0+19120 s

NH (Galactic)9.76 × 1019 cm-2
NH (intrinsic)7.8 (+1.7, -1.6) × 1021 cm-2
z of absorber1.023
Photon index1.97 (+0.11, -0.11)
Flux (0.3-10 keV)
(Observed)
3.11 (+0.23, -0.21) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.06 (+0.24, -0.23) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.48 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.55 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
327.02 (386)
Spectrum exposure20.4 ks

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Late Time spectrum (T0 + 4002 to 121785 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+19290 s

NH (Galactic)9.76 × 1019 cm-2
NH (intrinsic)7.6 (+1.7, -1.6) × 1021 cm-2
z of absorber1.023
Photon index1.97 (+0.11, -0.11)
Flux (0.3-10 keV)
(Observed)
3.05 (+0.22, -0.21) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.98 (+0.24, -0.22) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.48 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.54 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
320.38 (386)
Spectrum exposure20.3 ks

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