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Swift-XRT spectra of GRB 051016B

Last updated after receiving ObsID 00159994010, version 18

Data were analysed using HEASOFT version 6.35.2

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The spectral fits assume a redshift: 0.9364 (GCN 4186)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 83 to 75863 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+92 s

N_H (Galactic)	3.54 × 10²⁰ cm^-2
N_H (intrinsic)	1.2 (+0.6, -0.5) × 10²² cm^-2
z of absorber	0.9364
Photon index	5.04 (+1.15, -0.88)
Flux (0.3-10 keV) (Observed)	1.16 (+0.20, -0.18) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.5 (+3.7, -0.9) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	1.90 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	2.50 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	65.17 (83)
Spectrum exposure	25 s

PC mode. Mean photon arrival: T0+22605 s

N_H (Galactic)	3.54 × 10²⁰ cm^-2
N_H (intrinsic)	7.0 (+2.1, -1.9) × 10²¹ cm^-2
z of absorber	0.9364
Photon index	1.80 (+0.13, -0.12)
Flux (0.3-10 keV) (Observed)	1.53 (+0.13, -0.12) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.93 (+0.13, -0.12) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.80 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.78 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	370.78 (370)
Spectrum exposure	32.8 ks

Late Time spectrum (T0 + 4055 to 75863 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+24718 s

N_H (Galactic)	3.54 × 10²⁰ cm^-2
N_H (intrinsic)	8.9 (+2.5, -2.2) × 10²¹ cm^-2
z of absorber	0.9364
Photon index	1.85 (+0.14, -0.13)
Flux (0.3-10 keV) (Observed)	1.38 (+0.12, -0.11) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.81 (+0.13, -0.12) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.76 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.93 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	344.17 (353)
Spectrum exposure	32.1 ks