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Swift-XRT spectra of GRB 151027B

Last updated after receiving ObsID 00661869010, version 8

Data were analysed using HEASOFT version 6.35.2

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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

N_H (Galactic)	9.43 × 10²⁰ cm^-2
N_H (intrinsic)	2.2 (+2.4, -2.2) × 10²² cm^-2
z of absorber	4.063
Photon index	2.44 (+0.25, -0.23)
Flux (0.3-10 keV) (Observed)	2.02 (+0.27, -0.23) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.1 (+0.5, -0.4) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	2.63 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.01 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	147.86 (208)
Spectrum exposure	61 s

PC mode. Mean photon arrival: T0+12721 s

N_H (Galactic)	9.43 × 10²⁰ cm^-2
N_H (intrinsic)	3.3 (+2.4, -2.1) × 10²² cm^-2
z of absorber	4.063
Photon index	1.79 (+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 exposure	12.1 ks

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

N_H (Galactic)	9.43 × 10²⁰ cm^-2
N_H (intrinsic)	3.5 (+2.7, -2.4) × 10²² cm^-2
z of absorber	4.063
Photon index	1.71 (+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 exposure	11.7 ks