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Swift-XRT spectra of GRB 090309

Last updated after receiving ObsID 00345945003, version 18

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 86 to 74205 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+17905 s

NH (Galactic)1.81 × 1021 cm-2
NH (intrinsic)4.4 (+2.7, -2.1) × 1021 cm-2
z of absorber0
Photon index2.1 (+0.3, -0.3)
Flux (0.3-10 keV)
(Observed)
5.9 (+1.0, -0.8) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.1 (+0.3, -0.4) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.03 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)7.35 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
165.77 (225)
Spectrum exposure29.1 ks

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Late Time spectrum (T0 + 4091 to 74205 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+22641 s

NH (Galactic)1.81 × 1021 cm-2
NH (intrinsic)4.1 (+2.7, -2.2) × 1021 cm-2
z of absorber0
Photon index2.1 (+0.4, -0.3)
Flux (0.3-10 keV)
(Observed)
4.9 (+0.9, -0.7) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
8.7 (+2.9, -1.3) × 10-13 erg cm-2 s-1
Counts to flux (obs)4.07 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)7.17 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
141.84 (194)
Spectrum exposure28.3 ks

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