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Swift-XRT spectra of GRB 090927

Last updated after receiving ObsID 00370846008, version 13

Data were analysed using HEASOFT version 6.32

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The spectral fits assume a redshift: 1.37 (GCN 9958)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 2143 to 33130 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+13218 s

NH (Galactic)3.22 × 1020 cm-2
NH (intrinsic)2.0 (+2.7, -2.0) × 1021 cm-2
z of absorber1.37
Photon index1.95 (+0.19, -0.18)
Flux (0.3-10 keV)
(Observed)
1.75 (+0.22, -0.19) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.00 (+0.20, -0.19) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.34 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.81 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
166.02 (241)
Spectrum exposure11.6 ks

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Late Time spectrum (T0 + 7916 to 33130 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+16071 s

NH (Galactic)3.22 × 1020 cm-2
NH (intrinsic)3.4 (+3.3, -2.9) × 1021 cm-2
z of absorber1.37
Photon index2.05 (+0.22, -0.21)
Flux (0.3-10 keV)
(Observed)
1.41 (+0.20, -0.17) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.70 (+0.20, -0.18) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.19 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.86 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
136.47 (210)
Spectrum exposure10.2 ks

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