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Swift-XRT spectra of GRB 050922B

Last updated after receiving ObsID 00156434017, version 18

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

The spectral fits assume a redshift: 4.9 (Perley et al. 2016)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 349 to 11426 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+443 s

N_H (Galactic)	3.52 × 10²⁰ cm^-2
N_H (intrinsic)	7.1 (+0.9, -0.9) × 10²² cm^-2
z of absorber	4.9
Photon index	2.47 (+0.06, -0.06)
Flux (0.3-10 keV) (Observed)	6.03 (+0.19, -0.18) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	9.2 (+0.4, -0.3) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	2.55 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.89 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	468.26 (482)
Spectrum exposure	269 s

PC mode. Mean photon arrival: T0+1334 s

N_H (Galactic)	3.52 × 10²⁰ cm^-2
N_H (intrinsic)	7.4 (+1.7, -1.6) × 10²² cm^-2
z of absorber	4.9
Photon index	2.31 (+0.10, -0.10)
Flux (0.3-10 keV) (Observed)	7.3 (+0.4, -0.4) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.05 (+0.06, -0.06) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	2.78 × 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?	303.69 (372)
Spectrum exposure	3.9 ks

Late Time spectrum (T0 + 5095 to 11426 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+6539 s

N_H (Galactic)	3.52 × 10²⁰ cm^-2
N_H (intrinsic)	7 (+6, -5) × 10²² cm^-2
z of absorber	4.9
Photon index	2.4 (+0.4, -0.3)
Flux (0.3-10 keV) (Observed)	1.73 (+0.37, -0.29) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.5 (+0.7, -0.5) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	2.76 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.04 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	66.40 (94)
Spectrum exposure	2.7 ks