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Swift-XRT spectra of GRB 180618A

Last updated after receiving ObsID 00842475991, version 0

Data were analysed using HEASOFT version 6.26.1

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 83 to 47495 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+186 s

NH (Galactic)4.44 × 1020 cm-2
NH (intrinsic)2.0 (+0.3, -0.3) × 1021 cm-2
z of absorber0
Photon index1.88 (+0.08, -0.08)
Flux (0.3-10 keV)
(Observed)
4.23 (+0.21, -0.20) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
5.71 (+0.22, -0.22) × 10-10 erg cm-2 s-1
Counts to flux (obs)3.78 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.11 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
512.82 (537)
Spectrum exposure293 s

PC mode. Mean photon arrival: T0+4176 s

NH (Galactic)4.44 × 1020 cm-2
NH (intrinsic)2.6 (+0.9, -0.8) × 1021 cm-2
z of absorber0
Photon index2.21 (+0.22, -0.21)
Flux (0.3-10 keV)
(Observed)
2.15 (+0.25, -0.22) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.6 (+0.4, -0.4) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.35 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.56 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
234.70 (274)
Spectrum exposure16.0 ks

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Late Time spectrum (T0 + 5060 to 47495 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+21668 s

NH (Galactic)4.44 × 1020 cm-2
NH (intrinsic)2.0 (+2.4, -1.7) × 1021 cm-2
z of absorber0
Photon index2.0 (+0.6, -0.5)
Flux (0.3-10 keV)
(Observed)
2.93 (+1.11, -0.76) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.09 (+1.17, -0.72) × 10-13 erg cm-2 s-1
Counts to flux (obs)3.71 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.19 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
66.19 (75)
Spectrum exposure14.8 ks

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