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Swift-XRT spectra of GRB 120923A

Last updated after receiving ObsID 00534402004, version 13

Data were analysed using HEASOFT version 6.22

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The spectral fits assume a redshift: 7.84 (Tanvir et al. 2017)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 143 to 57819 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+146 s

NH (Galactic)1.51 × 1021 cm-2
NH (intrinsic)5 (+81, -5) × 1022 cm-2
z of absorber7.84
Photon index3.8 (+3.9, -1.7)
Flux (0.3-10 keV)
(Observed)
2.8 (+2.8, -1.7) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
5 (+1.00 × 1011, -4) × 10-11 erg cm-2 s-1
Counts to flux (obs)2.02 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.98 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
6.90 (7)
Spectrum exposure6 s

PC mode. Mean photon arrival: T0+3897 s

NH (Galactic)1.51 × 1021 cm-2
NH (intrinsic)4 (+40, -4) × 1022 cm-2
z of absorber7.84
Photon index1.71 (+0.45, -0.27)
Flux (0.3-10 keV)
(Observed)
6.9 (+1.6, -1.5) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
8.3 (+1.7, -1.5) × 10-13 erg cm-2 s-1
Counts to flux (obs)4.14 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.01 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
83.66 (104)
Spectrum exposure8.8 ks

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Late Time spectrum (T0 + 35205 to 57819 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+43510 s

NH (Galactic)1.51 × 1021 cm-2
NH (intrinsic)0 (+7.62 × 1023, -0) cm-2
z of absorber7.84
Photon index2.8 (+2.4, -1.4)
Flux (0.3-10 keV)
(Observed)
5.2 (+15.4, -2.7) × 10-14 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
8 (+9, -5) × 10-14 erg cm-2 s-1
Counts to flux (obs)2.97 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.50 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
9.82 (7)
Spectrum exposure7.4 ks

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