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Swift-XRT spectra of GRB 100425A

Last updated after receiving ObsID 00420398008, version 11

Data were analysed using HEASOFT version 6.32

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The spectral fits assume a redshift: 1.755 (GCN 10684)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 85 to 58848 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+117 s

NH (Galactic)1.24 × 1021 cm-2
NH (intrinsic)1.39 (+0.23, -0.22) × 1022 cm-2
z of absorber1.755
Photon index3.68 (+0.14, -0.13)
Flux (0.3-10 keV)
(Observed)
5.66 (+0.21, -0.20) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.39 (+0.35, -0.29) × 10-9 erg cm-2 s-1
Counts to flux (obs)2.11 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)8.90 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
232.30 (285)
Spectrum exposure106 s

PC mode. Mean photon arrival: T0+13129 s

NH (Galactic)1.24 × 1021 cm-2
NH (intrinsic)0 (+1.81 × 1021, -0) cm-2
z of absorber1.755
Photon index2.20 (+0.13, -0.12)
Flux (0.3-10 keV)
(Observed)
1.044 (+0.101, -0.096) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.42 (+0.11, -0.11) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.05 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.14 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
193.95 (229)
Spectrum exposure18.5 ks

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Late Time spectrum (T0 + 4345 to 58848 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+19302 s

NH (Galactic)1.24 × 1021 cm-2
NH (intrinsic)0 (+5.73 × 1021, -0) cm-2
z of absorber1.755
Photon index1.95 (+0.23, -0.14)
Flux (0.3-10 keV)
(Observed)
8.2 (+1.0, -1.1) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.023 (+0.119, -0.091) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.47 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.33 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
175.35 (191)
Spectrum exposure17.7 ks

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