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Swift-XRT spectra of GRB 121217A

Last updated after receiving ObsID 00542441024, version 7

Data were analysed using HEASOFT version 6.29

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 70 to 59251 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+95 s

NH (Galactic)5.15 × 1021 cm-2
NH (intrinsic)0 (+2.27 × 1020, -0) cm-2
z of absorber0
Photon index2.035 (+0.112, -0.074)
Flux (0.3-10 keV)
(Observed)
5.3 (+0.5, -0.3) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
8.32 (+0.14, -0.97) × 10-10 erg cm-2 s-1
Counts to flux (obs)3.80 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.96 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
317.83 (398)
Spectrum exposure78 s

PC mode. Mean photon arrival: T0+18195 s

NH (Galactic)5.15 × 1021 cm-2
NH (intrinsic)7 (+7, -6) × 1020 cm-2
z of absorber0
Photon index1.85 (+0.10, -0.09)
Flux (0.3-10 keV)
(Observed)
1.44 (+0.07, -0.07) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.20 (+0.12, -0.11) × 10-11 erg cm-2 s-1
Counts to flux (obs)4.54 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.92 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
492.28 (569)
Spectrum exposure13.6 ks

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Late Time spectrum (T0 + 5507 to 59251 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+23060 s

NH (Galactic)5.15 × 1021 cm-2
NH (intrinsic)8 (+8, -7) × 1020 cm-2
z of absorber0
Photon index1.94 (+0.11, -0.11)
Flux (0.3-10 keV)
(Observed)
10.0 (+0.6, -0.5) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.611 (+0.114, -0.093) × 10-11 erg cm-2 s-1
Counts to flux (obs)4.34 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)7.02 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
426.56 (517)
Spectrum exposure12.8 ks

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