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Swift-XRT spectra of GRB 170804A

Last updated after receiving ObsID 00766194003, version 16

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 128 to 34743 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+162 s

NH (Galactic)1.79 × 1020 cm-2
NH (intrinsic)0 (+2.32 × 1020, -0) cm-2
z of absorber0
Photon index2.37 (+0.18, -0.12)
Flux (0.3-10 keV)
(Observed)
2.20 (+0.17, -0.20) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.37 (+0.19, -0.26) × 10-10 erg cm-2 s-1
Counts to flux (obs)2.65 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)2.86 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
203.84 (224)
Spectrum exposure95 s

PC mode. Mean photon arrival: T0+4148 s

NH (Galactic)1.79 × 1020 cm-2
NH (intrinsic)0 (+2.70 × 1020, -0) cm-2
z of absorber0
Photon index1.93 (+0.17, -0.13)
Flux (0.3-10 keV)
(Observed)
1.43 (+0.14, -0.16) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.49 (+0.15, -0.14) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.26 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.42 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
145.18 (191)
Spectrum exposure11.2 ks

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Late Time spectrum (T0 + 5607 to 34743 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+17370 s

NH (Galactic)1.79 × 1020 cm-2
NH (intrinsic)8.9 (+15.0, -8.9) × 1020 cm-2
z of absorber0
Photon index2.5 (+0.7, -0.6)
Flux (0.3-10 keV)
(Observed)
2.6 (+0.9, -0.6) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.72 (+1.15, -0.88) × 10-13 erg cm-2 s-1
Counts to flux (obs)2.72 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.93 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
62.49 (57)
Spectrum exposure10.0 ks

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