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Swift-XRT spectra of GRB 160227A

Last updated after receiving ObsID 00676423022, version 11

Data were analysed using HEASOFT version 6.26.1

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The spectral fits assume a redshift: 2.38 (GCN 19109)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 158 to 54086 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+396 s

NH (Galactic)4.14 × 1020 cm-2
NH (intrinsic)4.6 (+1.2, -1.2) × 1021 cm-2
z of absorber2.38
Photon index1.736 (+0.028, -0.028)
Flux (0.3-10 keV)
(Observed)
1.041 (+0.021, -0.020) × 10-9 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.158 (+0.019, -0.018) × 10-9 erg cm-2 s-1
Counts to flux (obs)3.68 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.09 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
813.87 (758)
Spectrum exposure691 s

PC mode. Mean photon arrival: T0+19301 s

NH (Galactic)4.14 × 1020 cm-2
NH (intrinsic)1.7 (+2.9, -1.7) × 1021 cm-2
z of absorber2.38
Photon index1.70 (+0.07, -0.07)
Flux (0.3-10 keV)
(Observed)
1.09 (+0.06, -0.06) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.18 (+0.05, -0.05) × 10-11 erg cm-2 s-1
Counts to flux (obs)3.84 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.16 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
408.17 (478)
Spectrum exposure12.4 ks

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Late Time spectrum (T0 + 5939 to 54086 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+24540 s

NH (Galactic)4.14 × 1020 cm-2
NH (intrinsic)4 (+4, -3) × 1021 cm-2
z of absorber2.38
Photon index1.71 (+0.08, -0.08)
Flux (0.3-10 keV)
(Observed)
8.3 (+0.5, -0.5) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
9.1 (+0.5, -0.4) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.81 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.20 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
375.07 (439)
Spectrum exposure10.8 ks

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