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Swift-XRT spectra of GRB 081102

Last updated after receiving ObsID 00333427000, version 22

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 98 to 80709 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+147 s

NH (Galactic)6.40 × 1021 cm-2
NH (intrinsic)3 (+7, -3) × 1020 cm-2
z of absorber0
Photon index2.58 (+0.14, -0.12)
Flux (0.3-10 keV)
(Observed)
4.66 (+0.28, -0.27) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.300 (+0.192, -0.099) × 10-9 erg cm-2 s-1
Counts to flux (obs)3.17 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)8.86 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
437.83 (452)
Spectrum exposure151 s

PC mode. Mean photon arrival: T0+4284 s

NH (Galactic)6.40 × 1021 cm-2
NH (intrinsic)0 (+7.12 × 1020, -0) cm-2
z of absorber0
Photon index1.631 (+0.112, -0.086)
Flux (0.3-10 keV)
(Observed)
4.9 (+0.3, -0.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
6.8 (+0.4, -0.4) × 10-12 erg cm-2 s-1
Counts to flux (obs)5.34 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)7.39 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
370.05 (415)
Spectrum exposure28.1 ks

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Late Time spectrum (T0 + 5578 to 80709 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+21469 s

NH (Galactic)6.40 × 1021 cm-2
NH (intrinsic)0 (+3.92 × 1021, -0) cm-2
z of absorber0
Photon index1.67 (+0.48, -0.21)
Flux (0.3-10 keV)
(Observed)
4.0 (+0.7, -0.8) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
5.71 (+1.67, -0.93) × 10-13 erg cm-2 s-1
Counts to flux (obs)5.19 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)7.38 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
111.60 (116)
Spectrum exposure26.7 ks

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