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Swift-XRT spectra of GRB 120121A

Last updated after receiving ObsID 00512164000, version 19

Data were analysed using HEASOFT version 6.29

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 123 to 47866 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+6507 s

NH (Galactic)2.58 × 1021 cm-2
NH (intrinsic)4.0 (+1.7, -1.4) × 1022 cm-2
z of absorber0
Photon index2.4 (+0.7, -0.6)
Flux (0.3-10 keV)
(Observed)
8.8 (+1.7, -1.4) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.8 (+7.4, -1.1) × 10-12 erg cm-2 s-1
Counts to flux (obs)6.81 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)2.92 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
165.46 (184)
Spectrum exposure21.0 ks

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Late Time spectrum (T0 + 4935 to 47866 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+18314 s

NH (Galactic)2.58 × 1021 cm-2
NH (intrinsic)2.3 (+2.2, -1.4) × 1022 cm-2
z of absorber0
Photon index2.41 (+1.20, -0.93)
Flux (0.3-10 keV)
(Observed)
2.84 (+1.13, -0.77) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.0 (+5.8, -0.5) × 10-12 erg cm-2 s-1
Counts to flux (obs)5.27 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)1.89 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
62.61 (67)
Spectrum exposure19.5 ks

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