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Swift-XRT spectra of GRB 151027B

Last updated after receiving ObsID 00661869010, version 8

Data were analysed using HEASOFT version 6.32

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The spectral fits assume a redshift: 4.063 (GCN 18505)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 209 to 32442 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+232 s

NH (Galactic)9.43 × 1020 cm-2
NH (intrinsic)2.3 (+2.5, -2.2) × 1022 cm-2
z of absorber4.063
Photon index2.46 (+0.25, -0.23)
Flux (0.3-10 keV)
(Observed)
1.94 (+0.26, -0.23) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.0 (+0.5, -0.4) × 10-10 erg cm-2 s-1
Counts to flux (obs)2.60 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.02 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
146.23 (208)
Spectrum exposure61 s

PC mode. Mean photon arrival: T0+12721 s

NH (Galactic)9.43 × 1020 cm-2
NH (intrinsic)3.3 (+2.4, -2.1) × 1022 cm-2
z of absorber4.063
Photon index1.79 (+0.14, -0.13)
Flux (0.3-10 keV)
(Observed)
4.0 (+0.4, -0.3) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.9 (+0.4, -0.3) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.85 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.73 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
270.99 (328)
Spectrum exposure12.1 ks

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Late Time spectrum (T0 + 4001 to 32442 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+14394 s

NH (Galactic)9.43 × 1020 cm-2
NH (intrinsic)3.5 (+2.7, -2.4) × 1022 cm-2
z of absorber4.063
Photon index1.71 (+0.15, -0.14)
Flux (0.3-10 keV)
(Observed)
3.7 (+0.4, -0.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.5 (+0.4, -0.3) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.06 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.88 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
264.53 (309)
Spectrum exposure11.7 ks

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