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Swift-XRT spectra of GRB 130420B

Last updated after receiving ObsID 00553996002, version 5

Data were analysed using HEASOFT version 6.22

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 58 to 39893 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+61 s

NH (Galactic)1.52 × 1020 cm-2
NH (intrinsic)2.2 (+6.6, -2.2) × 1021 cm-2
z of absorber0
Photon index2.05 (+1.80, -0.67)
Flux (0.3-10 keV)
(Observed)
3.3 (+3.6, -1.8) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.7 (+11.3, -2.1) × 10-10 erg cm-2 s-1
Counts to flux (obs)2.80 × 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?
21.41 (20)
Spectrum exposure7 s

PC mode. Mean photon arrival: T0+8614 s

NH (Galactic)1.52 × 1020 cm-2
NH (intrinsic)5 (+10, -5) × 1020 cm-2
z of absorber0
Photon index1.8 (+0.4, -0.3)
Flux (0.3-10 keV)
(Observed)
1.08 (+0.26, -0.21) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.20 (+0.22, -0.19) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.63 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.07 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
78.26 (113)
Spectrum exposure6.3 ks

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Late Time spectrum (T0 + 4000 to 39893 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+8990 s

NH (Galactic)1.52 × 1020 cm-2
NH (intrinsic)5.0 (+10.2, -5.0) × 1020 cm-2
z of absorber0
Photon index1.8 (+0.4, -0.3)
Flux (0.3-10 keV)
(Observed)
1.02 (+0.26, -0.20) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.15 (+0.22, -0.19) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.54 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.99 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
78.04 (105)
Spectrum exposure6.1 ks

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