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Swift-XRT spectra of GRB 160804A

Last updated after receiving ObsID 00707231009, version 9

Data were analysed using HEASOFT version 6.26.1

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The spectral fits assume a redshift: 0.736 (GCN 19773)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 151 to 224394 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+367 s

NH (Galactic)1.92 × 1020 cm-2
NH (intrinsic)3.97 (+0.22, -0.22) × 1021 cm-2
z of absorber0.736
Photon index1.734 (+0.021, -0.021)
Flux (0.3-10 keV)
(Observed)
2.69 (+0.04, -0.04) × 10-9 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.20 (+0.03, -0.03) × 10-9 erg cm-2 s-1
Counts to flux (obs)3.88 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.60 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
905.42 (838)
Spectrum exposure599 s

PC mode. Mean photon arrival: T0+20821 s

NH (Galactic)1.92 × 1020 cm-2
NH (intrinsic)2.1 (+1.0, -0.9) × 1021 cm-2
z of absorber0.736
Photon index1.86 (+0.12, -0.12)
Flux (0.3-10 keV)
(Observed)
2.44 (+0.20, -0.18) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.83 (+0.18, -0.17) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.55 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.11 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
327.40 (350)
Spectrum exposure19.4 ks

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Late Time spectrum (T0 + 4259 to 224394 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+25512 s

NH (Galactic)1.92 × 1020 cm-2
NH (intrinsic)3.6 (+1.3, -1.2) × 1021 cm-2
z of absorber0.736
Photon index1.90 (+0.14, -0.14)
Flux (0.3-10 keV)
(Observed)
1.90 (+0.18, -0.16) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.33 (+0.17, -0.16) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.55 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.36 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
289.17 (319)
Spectrum exposure19.0 ks

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