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Swift-XRT spectra of GRB 160227A

Last updated after receiving ObsID 00676423022, version 11

Data were analysed using HEASOFT version 6.32

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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)4.5 (+1.2, -1.2) × 1021 cm-2
z of absorber2.38
Photon index1.732 (+0.028, -0.028)
Flux (0.3-10 keV)
(Observed)
1.094 (+0.022, -0.021) × 10-9 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.216 (+0.020, -0.019) × 10-9 erg cm-2 s-1
Counts to flux (obs)3.68 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.08 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
814.32 (758)
Spectrum exposure691 s

PC mode. Mean photon arrival: T0+19412 s

NH (Galactic)4.14 × 1020 cm-2
NH (intrinsic)1.6 (+2.9, -1.6) × 1021 cm-2
z of absorber2.38
Photon index1.68 (+0.07, -0.07)
Flux (0.3-10 keV)
(Observed)
1.19 (+0.07, -0.06) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.29 (+0.06, -0.06) × 10-11 erg cm-2 s-1
Counts to flux (obs)3.85 × 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?
403.55 (477)
Spectrum exposure12.5 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+24829 s

NH (Galactic)4.14 × 1020 cm-2
NH (intrinsic)4 (+4, -3) × 1021 cm-2
z of absorber2.38
Photon index1.70 (+0.09, -0.08)
Flux (0.3-10 keV)
(Observed)
9.0 (+0.6, -0.5) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
9.9 (+0.5, -0.5) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.83 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.21 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
368.58 (437)
Spectrum exposure10.9 ks

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