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Swift-XRT spectra of GRB 171120A

Last updated after receiving ObsID 00791201007, version 8

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 94 to 46619 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+310 s

N_H (Galactic)	1.17 × 10²⁰ cm^-2
N_H (intrinsic)	2.64 (+0.29, -0.27) × 10²² cm^-2
z of absorber	0
Photon index	1.79 (+0.14, -0.14)
Flux (0.3-10 keV) (Observed)	6.0 (+0.3, -0.3) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.173 (+0.140, -0.069) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	6.97 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	1.37 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	564.67 (650)
Spectrum exposure	331 s

PC mode. Mean photon arrival: T0+13449 s

N_H (Galactic)	1.17 × 10²⁰ cm^-2
N_H (intrinsic)	2.23 (+0.29, -0.27) × 10²² cm^-2
z of absorber	0
Photon index	1.77 (+0.16, -0.15)
Flux (0.3-10 keV) (Observed)	1.26 (+0.08, -0.07) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.36 (+0.30, -0.14) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	6.92 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	1.29 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	511.02 (563)
Spectrum exposure	14.6 ks

Late Time spectrum (T0 + 4002 to 46619 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+16707 s

N_H (Galactic)	1.17 × 10²⁰ cm^-2
N_H (intrinsic)	2.11 (+0.31, -0.28) × 10²² cm^-2
z of absorber	0
Photon index	1.81 (+0.18, -0.17)
Flux (0.3-10 keV) (Observed)	8.6 (+0.6, -0.6) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.635 (+0.248, -0.099) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	6.66 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	1.27 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	436.79 (512)
Spectrum exposure	14.2 ks