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Swift-XRT spectra of GRB 170405A

Last updated after receiving ObsID 00745797004, version 17

Data were analysed using HEASOFT version 6.26.1

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The spectral fits assume a redshift: 3.51 (GCN 20990)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 126 to 57705 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+272 s

NH (Galactic)8.75 × 1020 cm-2
NH (intrinsic)1.0 (+3.6, -1.0) × 1021 cm-2
z of absorber3.51
Photon index1.563 (+0.033, -0.029)
Flux (0.3-10 keV)
(Observed)
1.111 (+0.027, -0.027) × 10-9 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.229 (+0.025, -0.024) × 10-9 erg cm-2 s-1
Counts to flux (obs)4.20 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.65 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
651.82 (745)
Spectrum exposure489 s

PC mode. Mean photon arrival: T0+6019 s

NH (Galactic)8.75 × 1020 cm-2
NH (intrinsic)0 (+9.06 × 1021, -0) cm-2
z of absorber3.51
Photon index1.838 (+0.108, -0.068)
Flux (0.3-10 keV)
(Observed)
1.16 (+0.07, -0.08) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.35 (+0.04, -0.07) × 10-11 erg cm-2 s-1
Counts to flux (obs)3.61 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.20 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
315.09 (381)
Spectrum exposure6.5 ks

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Late Time spectrum (T0 + 4518 to 57705 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+8558 s

NH (Galactic)8.75 × 1020 cm-2
NH (intrinsic)2.1 (+11.8, -2.1) × 1021 cm-2
z of absorber3.51
Photon index1.98 (+0.14, -0.11)
Flux (0.3-10 keV)
(Observed)
6.1 (+0.5, -0.5) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
7.4 (+0.5, -0.5) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.34 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.05 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
300.04 (298)
Spectrum exposure6.1 ks

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