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Swift-XRT spectra of GRB 120927A

Last updated after receiving ObsID 00534815001, version 15.

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Time-averaged spectrum (T0 + 157 to 52788 s)

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WT and PC mode spectra of GRB 120927A

WT mode. Mean photon arrival: T0+162 s

NH (Galactic)3.5 × 1020 cm-2
NH (intrinsic)5 (+8, -5) × 1021 cm-2
z of absorber0
Photon index2.5 (+2.6, -1.3)
Flux (0.3-10 keV)
(Observed)
1.02 (+1.02, -0.52) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.4 (+6.1, -1.2) × 10-10 erg cm-2 s-1
Counts to flux (obs)2.6 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
22.70 (30)
Spectrum exposure10 s

PC mode. Mean photon arrival: T0+4801 s

NH (Galactic)3.5 × 1020 cm-2
NH (intrinsic)3.62 (+1.02, -0.92) × 1021 cm-2
z of absorber0
Photon index1.66 (+0.17, -0.17)
Flux (0.3-10 keV)
(Observed)
5.0 (+0.5, -0.5) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
6.5 (+0.5, -0.5) × 10-12 erg cm-2 s-1
Counts to flux (obs)5 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
308.58 (345)
Spectrum exposure10.7 ks

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Late Time spectrum (T0 + 4079 to 52788 s)

Download spectral files for Late Time spectrum.

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PC mode spectrum of GRB 120927A

PC mode. Mean photon arrival: T0+8516 s

NH (Galactic)3.5 × 1020 cm-2
NH (intrinsic)3.4 (+1.4, -1.1) × 1021 cm-2
z of absorber0
Photon index1.66 (+0.24, -0.22)
Flux (0.3-10 keV)
(Observed)
2.11 (+0.32, -0.27) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.76 (+0.30, -0.28) × 10-12 erg cm-2 s-1
Counts to flux (obs)5 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
187.75 (241)
Spectrum exposure10.0 ks

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