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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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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

NH (Galactic)1.56 × 1020 cm-2
NH (intrinsic)3.3 (+1.9, -1.7) × 1022 cm-2
z of absorber4.707
Photon index1.628 (+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 exposure92 s

PC mode. Mean photon arrival: T0+2887 s

NH (Galactic)1.56 × 1020 cm-2
NH (intrinsic)2.9 (+1.7, -1.6) × 1022 cm-2
z of absorber4.707
Photon index1.91 (+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 exposure8.2 ks

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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

NH (Galactic)1.56 × 1020 cm-2
NH (intrinsic)4 (+4, -3) × 1022 cm-2
z of absorber4.707
Photon index1.94 (+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 exposure6.2 ks

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