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Swift-XRT spectra of GRB 111209A

Last updated after receiving ObsID 00509337000, version 6

Data were analysed using HEASOFT version 6.32

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The spectral fits assume a redshift: 0.677 (GCN 12648)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 425 to 100235 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+5427 s

NH (Galactic)1.54 × 1020 cm-2
NH (intrinsic)2.66 (+0.09, -0.08) × 1021 cm-2
z of absorber0.677
Photon index1.265 (+0.007, -0.007)
Flux (0.3-10 keV)
(Observed)
2.470 (+0.013, -0.013) × 10-9 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.635 (+0.012, -0.012) × 10-9 erg cm-2 s-1
Counts to flux (obs)5.15 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.50 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
1220.33 (964)
Spectrum exposure9.4 ks

PC mode. Mean photon arrival: T0+37447 s

NH (Galactic)1.54 × 1020 cm-2
NH (intrinsic)2.1 (+0.5, -0.5) × 1021 cm-2
z of absorber0.677
Photon index1.72 (+0.06, -0.06)
Flux (0.3-10 keV)
(Observed)
1.31 (+0.06, -0.05) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.48 (+0.05, -0.05) × 10-11 erg cm-2 s-1
Counts to flux (obs)3.83 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.31 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
543.37 (563)
Spectrum exposure25.0 ks

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Late Time spectrum (T0 + 22701 to 100235 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+37447 s

NH (Galactic)1.54 × 1020 cm-2
NH (intrinsic)2.1 (+0.5, -0.5) × 1021 cm-2
z of absorber0.677
Photon index1.72 (+0.06, -0.06)
Flux (0.3-10 keV)
(Observed)
1.31 (+0.06, -0.05) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.48 (+0.05, -0.05) × 10-11 erg cm-2 s-1
Counts to flux (obs)3.83 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.31 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
543.37 (563)
Spectrum exposure25.0 ks

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