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Swift-XRT spectra of GRB 191004B

Last updated after receiving ObsID 00927839007, version 8

Data were analysed using HEASOFT version 6.35.2

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The spectral fits assume a redshift: 3.503 (GCN 25956)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 64 to 46265 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+114 s

NH (Galactic)1.93 × 1020 cm-2
NH (intrinsic)5 (+7, -5) × 1021 cm-2
z of absorber3.503
Photon index1.72 (+0.09, -0.08)
Flux (0.3-10 keV)
(Observed)
5.00 (+0.31, -0.30) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
5.29 (+0.28, -0.26) × 10-10 erg cm-2 s-1
Counts to flux (obs)3.62 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.83 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
406.57 (448)
Spectrum exposure142 s

PC mode. Mean photon arrival: T0+12362 s

NH (Galactic)1.93 × 1020 cm-2
NH (intrinsic)4.4 (+17.7, -4.4) × 1021 cm-2
z of absorber3.503
Photon index1.59 (+0.20, -0.17)
Flux (0.3-10 keV)
(Observed)
6.1 (+0.9, -0.8) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
6.4 (+0.9, -0.8) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.03 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.22 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
137.35 (205)
Spectrum exposure5.0 ks

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Late Time spectrum (T0 + 38073 to 46265 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+41646 s

NH (Galactic)1.93 × 1020 cm-2
NH (intrinsic)0 (+2.26 × 1022, -0) cm-2
z of absorber3.503
Photon index1.64 (+0.40, -0.19)
Flux (0.3-10 keV)
(Observed)
9.5 (+2.1, -2.3) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
9.8 (+1.9, -2.2) × 10-13 erg cm-2 s-1
Counts to flux (obs)3.82 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.96 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
69.17 (74)
Spectrum exposure4.8 ks

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