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Swift-XRT spectra of GRB 180329B

Last updated after receiving ObsID 00819490004, version 8

Data were analysed using HEASOFT version 6.32

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The spectral fits assume a redshift: 1.998 (GCN 22567)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 109 to 39214 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+205 s

NH (Galactic)2.53 × 1020 cm-2
NH (intrinsic)9.1 (+1.4, -1.3) × 1021 cm-2
z of absorber1.998
Photon index1.48 (+0.03, -0.03)
Flux (0.3-10 keV)
(Observed)
2.45 (+0.06, -0.06) × 10-9 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.69 (+0.05, -0.05) × 10-9 erg cm-2 s-1
Counts to flux (obs)4.39 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.80 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
732.83 (754)
Spectrum exposure260 s

PC mode. Mean photon arrival: T0+8709 s

NH (Galactic)2.53 × 1020 cm-2
NH (intrinsic)1.7 (+2.7, -1.7) × 1021 cm-2
z of absorber1.998
Photon index1.79 (+0.10, -0.10)
Flux (0.3-10 keV)
(Observed)
6.0 (+0.4, -0.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
6.4 (+0.4, -0.3) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.58 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.85 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
352.18 (392)
Spectrum exposure12.1 ks

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Late Time spectrum (T0 + 4640 to 39214 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+11357 s

NH (Galactic)2.53 × 1020 cm-2
NH (intrinsic)2.8 (+3.3, -2.8) × 1021 cm-2
z of absorber1.998
Photon index1.84 (+0.12, -0.12)
Flux (0.3-10 keV)
(Observed)
4.1 (+0.3, -0.3) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.56 (+0.30, -0.28) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.50 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.85 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
293.81 (346)
Spectrum exposure11.2 ks

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