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Swift-XRT spectra of GRB 120927A

Last updated after receiving ObsID 00534815001, version 17

Data were analysed using HEASOFT version 6.29

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 157 to 52791 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+162 s

NH (Galactic)3.54 × 1020 cm-2
NH (intrinsic)4 (+8, -4) × 1021 cm-2
z of absorber0
Photon index2.2 (+2.0, -1.1)
Flux (0.3-10 keV)
(Observed)
1.18 (+1.08, -0.63) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.19 (+2.12, -0.78) × 10-10 erg cm-2 s-1
Counts to flux (obs)3.00 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.59 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
19.53 (27)
Spectrum exposure10 s

PC mode. Mean photon arrival: T0+4819 s

NH (Galactic)3.54 × 1020 cm-2
NH (intrinsic)3.88 (+1.07, -0.95) × 1021 cm-2
z of absorber0
Photon index1.69 (+0.18, -0.17)
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)
7.2 (+0.6, -0.5) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.73 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.36 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
312.97 (342)
Spectrum exposure10.7 ks

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Late Time spectrum (T0 + 4079 to 52791 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+8510 s

NH (Galactic)3.54 × 1020 cm-2
NH (intrinsic)3.4 (+1.4, -1.1) × 1021 cm-2
z of absorber0
Photon index1.67 (+0.24, -0.23)
Flux (0.3-10 keV)
(Observed)
2.31 (+0.34, -0.30) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.0 (+0.3, -0.3) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.68 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.17 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
188.69 (241)
Spectrum exposure10.0 ks

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