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Swift-XRT spectra of GRB 140518A

Last updated after receiving ObsID 00599287001, version 5

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

The spectral fits assume a redshift: 4.707 (GCN 16301)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 74 to 19474 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+98 s

N_H (Galactic)	1.56 × 10²⁰ cm^-2
N_H (intrinsic)	3.3 (+1.9, -1.7) × 10²² cm^-2
z of absorber	4.707
Photon index	1.628 (+0.101, -0.099)
Flux (0.3-10 keV) (Observed)	6.8 (+0.5, -0.5) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	7.4 (+0.5, -0.4) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	3.91 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.26 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	407.41 (432)
Spectrum exposure	92 s

PC mode. Mean photon arrival: T0+2887 s

N_H (Galactic)	1.56 × 10²⁰ cm^-2
N_H (intrinsic)	2.9 (+1.7, -1.6) × 10²² cm^-2
z of absorber	4.707
Photon index	1.91 (+0.12, -0.12)
Flux (0.3-10 keV) (Observed)	6.3 (+0.5, -0.5) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	7.2 (+0.5, -0.4) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.40 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.85 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	272.26 (329)
Spectrum exposure	8.2 ks

Late Time spectrum (T0 + 5450 to 19474 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+8334 s

N_H (Galactic)	1.56 × 10²⁰ cm^-2
N_H (intrinsic)	4 (+4, -3) × 10²² cm^-2
z of absorber	4.707
Photon index	1.94 (+0.25, -0.23)
Flux (0.3-10 keV) (Observed)	2.1 (+0.4, -0.3) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.5 (+0.3, -0.3) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.36 × 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?	119.10 (165)
Spectrum exposure	6.2 ks