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Swift-XRT spectra of GRB 180709A

Last updated after receiving ObsID 00846868003, version 8

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 111 to 42055 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+227 s

NH (Galactic)8.89 × 1021 cm-2
NH (intrinsic)1.5 (+0.5, -0.4) × 1022 cm-2
z of absorber0
Photon index1.43 (+0.21, -0.20)
Flux (0.3-10 keV)
(Observed)
4.0 (+0.3, -0.3) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
6.1 (+0.8, -0.5) × 10-10 erg cm-2 s-1
Counts to flux (obs)7.85 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)1.20 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
498.77 (531)
Spectrum exposure277 s

PC mode. Mean photon arrival: T0+1938 s

NH (Galactic)8.89 × 1021 cm-2
NH (intrinsic)2.21 (+1.12, -0.95) × 1022 cm-2
z of absorber0
Photon index1.5 (+0.5, -0.4)
Flux (0.3-10 keV)
(Observed)
2.7 (+0.5, -0.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.40 (+1.70, -0.77) × 10-12 erg cm-2 s-1
Counts to flux (obs)8.81 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)1.45 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
148.95 (210)
Spectrum exposure11.7 ks

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Late Time spectrum (T0 + 6635 to 42055 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+21757 s

NH (Galactic)8.89 × 1021 cm-2
NH (intrinsic)7.1 (+12.0, -7.1) × 1022 cm-2
z of absorber0
Photon index3 (+5, -3)
Flux (0.3-10 keV)
(Observed)
1.19 (+1.61, -0.59) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4 (+1.00 × 1012, -3) × 10-12 erg cm-2 s-1
Counts to flux (obs)5.98 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)1.84 × 10-9 erg cm-2 ct-1
W-stat (dof)
What's this?
28.68 (12)
Spectrum exposure10.3 ks

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