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Swift-XRT spectra of GRB 231118A

Last updated after receiving ObsID 01197311001, version 9

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

The spectral fits assume a redshift: 0.8304 (GCN 35123)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 102 to 22776 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+153 s

N_H (Galactic)	1.88 × 10²⁰ cm^-2
N_H (intrinsic)	8.6 (+3.4, -2.8) × 10²¹ cm^-2
z of absorber	0.8304
Photon index	1.36 (+0.14, -0.13)
Flux (0.3-10 keV) (Observed)	4.8 (+0.5, -0.4) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.5 (+0.4, -0.4) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	5.05 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.73 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	392.34 (445)
Spectrum exposure	117 s

PC mode. Mean photon arrival: T0+3279 s

N_H (Galactic)	1.88 × 10²⁰ cm^-2
N_H (intrinsic)	8.9 (+2.5, -2.2) × 10²¹ cm^-2
z of absorber	0.8304
Photon index	1.51 (+0.13, -0.12)
Flux (0.3-10 keV) (Observed)	4.5 (+0.4, -0.4) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.3 (+0.4, -0.3) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	4.81 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.69 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	331.48 (392)
Spectrum exposure	3.2 ks

Late Time spectrum (T0 + 16628 to 22776 s)

Download spectral files for Late Time spectrum.

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+17643 s

N_H (Galactic)	1.88 × 10²⁰ cm^-2
N_H (intrinsic)	1.5 (+0.8, -0.6) × 10²² cm^-2
z of absorber	0.8304
Photon index	2.4 (+0.4, -0.4)
Flux (0.3-10 keV) (Observed)	3.0 (+0.7, -0.5) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.7 (+2.5, -1.3) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.12 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.05 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	73.95 (108)
Spectrum exposure	1.8 ks