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Swift-XRT spectra of GRB 090904B

Last updated after receiving ObsID 00361831007, version 12

Data were analysed using HEASOFT version 6.29

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 137 to 52989 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+7229 s

NH (Galactic)4.72 × 1021 cm-2
NH (intrinsic)1.5 (+0.5, -0.4) × 1022 cm-2
z of absorber0
Photon index1.85 (+0.29, -0.27)
Flux (0.3-10 keV)
(Observed)
1.01 (+0.11, -0.10) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.9 (+0.4, -0.3) × 10-11 erg cm-2 s-1
Counts to flux (obs)6.50 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)1.25 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
282.11 (347)
Spectrum exposure11.4 ks

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Late Time spectrum (T0 + 28813 to 52989 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+38154 s

NH (Galactic)4.72 × 1021 cm-2
NH (intrinsic)2.3 (+1.4, -1.1) × 1022 cm-2
z of absorber0
Photon index2.6 (+0.8, -0.7)
Flux (0.3-10 keV)
(Observed)
7.1 (+2.0, -1.5) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.3 (+9.1, -1.4) × 10-12 erg cm-2 s-1
Counts to flux (obs)5.21 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)2.44 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
89.10 (94)
Spectrum exposure10.2 ks

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