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Swift-XRT spectra of GRB 100902A

Last updated after receiving ObsID 00433160018, version 13

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 320 to 71557 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+437 s

NH (Galactic)2.17 × 1021 cm-2
NH (intrinsic)3.47 (+0.25, -0.24) × 1021 cm-2
z of absorber0
Photon index2.24 (+0.04, -0.04)
Flux (0.3-10 keV)
(Observed)
3.97 (+0.09, -0.08) × 10-9 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
7.83 (+0.24, -0.25) × 10-9 erg cm-2 s-1
Counts to flux (obs)3.62 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)7.13 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
706.74 (711)
Spectrum exposure301 s

PC mode. Mean photon arrival: T0+12434 s

NH (Galactic)2.17 × 1021 cm-2
NH (intrinsic)3.6 (+0.9, -0.9) × 1021 cm-2
z of absorber0
Photon index2.19 (+0.16, -0.15)
Flux (0.3-10 keV)
(Observed)
5.0 (+0.4, -0.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
9.53 (+1.10, -0.86) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.80 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)7.25 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
339.36 (387)
Spectrum exposure15.2 ks

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Late Time spectrum (T0 + 6166 to 71557 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+21534 s

NH (Galactic)2.17 × 1021 cm-2
NH (intrinsic)2.89 (+1.12, -1.00) × 1021 cm-2
z of absorber0
Photon index2.17 (+0.21, -0.20)
Flux (0.3-10 keV)
(Observed)
2.30 (+0.26, -0.23) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.2 (+0.6, -0.5) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.75 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.81 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
269.14 (287)
Spectrum exposure12.8 ks

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