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Swift-XRT spectra of GRB 091029

Last updated after receiving ObsID 00374210024, version 10

Data were analysed using HEASOFT version 6.32

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The spectral fits assume a redshift: 2.752 (GCN 10100)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 85 to 37179 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+116 s

NH (Galactic)1.18 × 1020 cm-2
NH (intrinsic)2.9 (+3.7, -2.9) × 1021 cm-2
z of absorber2.752
Photon index2.37 (+0.13, -0.12)
Flux (0.3-10 keV)
(Observed)
3.68 (+0.24, -0.22) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.09 (+0.26, -0.24) × 10-10 erg cm-2 s-1
Counts to flux (obs)2.68 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)2.98 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
329.29 (343)
Spectrum exposure119 s

PC mode. Mean photon arrival: T0+12196 s

NH (Galactic)1.18 × 1020 cm-2
NH (intrinsic)5 (+3, -3) × 1021 cm-2
z of absorber2.752
Photon index2.03 (+0.09, -0.08)
Flux (0.3-10 keV)
(Observed)
5.74 (+0.31, -0.29) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
6.32 (+0.28, -0.28) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.13 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.45 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
386.07 (406)
Spectrum exposure15.8 ks

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Late Time spectrum (T0 + 5975 to 37179 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+17398 s

NH (Galactic)1.18 × 1020 cm-2
NH (intrinsic)8 (+4, -4) × 1021 cm-2
z of absorber2.752
Photon index2.007 (+0.103, -0.100)
Flux (0.3-10 keV)
(Observed)
4.21 (+0.28, -0.26) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.75 (+0.26, -0.25) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.18 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.59 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
339.01 (358)
Spectrum exposure13.5 ks

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