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Swift-XRT spectra of GRB 051109A

Last updated after receiving ObsID 00163136017, version 40

Data were analysed using HEASOFT version 6.32

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The spectral fits assume a redshift: 2.346 (GCN 4221)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 127 to 26874 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+158 s

NH (Galactic)2.59 × 1021 cm-2
NH (intrinsic)0 (+3.39 × 1021, -0) cm-2
z of absorber2.346
Photon index2.19 (+0.12, -0.11)
Flux (0.3-10 keV)
(Observed)
2.94 (+0.23, -0.20) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.7 (+0.3, -0.3) × 10-10 erg cm-2 s-1
Counts to flux (obs)3.17 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.02 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
245.86 (306)
Spectrum exposure83 s

PC mode. Mean photon arrival: T0+11646 s

NH (Galactic)2.59 × 1021 cm-2
NH (intrinsic)0 (+4.80 × 1021, -0) cm-2
z of absorber2.346
Photon index1.96 (+0.08, -0.05)
Flux (0.3-10 keV)
(Observed)
1.39 (+0.06, -0.07) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.96 (+0.07, -0.07) × 10-11 erg cm-2 s-1
Counts to flux (obs)3.65 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.15 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
479.72 (497)
Spectrum exposure10.1 ks

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Late Time spectrum (T0 + 4000 to 26874 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+11227 s

NH (Galactic)2.59 × 1021 cm-2
NH (intrinsic)0 (+4.87 × 1021, -0) cm-2
z of absorber2.346
Photon index1.95 (+0.08, -0.05)
Flux (0.3-10 keV)
(Observed)
1.43 (+0.06, -0.07) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.01 (+0.07, -0.07) × 10-11 erg cm-2 s-1
Counts to flux (obs)3.67 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.16 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
481.29 (512)
Spectrum exposure9.7 ks

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