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Swift-XRT spectra of GRB 180411A

Last updated after receiving ObsID 00824451003, version 9

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 72 to 74350 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+116 s

NH (Galactic)8.31 × 1021 cm-2
NH (intrinsic)9.7 (+1.7, -1.7) × 1021 cm-2
z of absorber0
Photon index1.70 (+0.11, -0.10)
Flux (0.3-10 keV)
(Observed)
3.28 (+0.14, -0.14) × 10-9 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
5.6 (+0.4, -0.3) × 10-9 erg cm-2 s-1
Counts to flux (obs)6.44 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)1.10 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
732.94 (681)
Spectrum exposure200 s

PC mode. Mean photon arrival: T0+20956 s

NH (Galactic)8.31 × 1021 cm-2
NH (intrinsic)9.3 (+2.2, -2.0) × 1021 cm-2
z of absorber0
Photon index1.86 (+0.14, -0.14)
Flux (0.3-10 keV)
(Observed)
9.8 (+0.6, -0.5) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.86 (+0.20, -0.17) × 10-11 erg cm-2 s-1
Counts to flux (obs)6.13 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)1.16 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
543.63 (572)
Spectrum exposure22.5 ks

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Late Time spectrum (T0 + 4421 to 74350 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+24049 s

NH (Galactic)8.31 × 1021 cm-2
NH (intrinsic)8.9 (+2.3, -2.2) × 1021 cm-2
z of absorber0
Photon index1.81 (+0.15, -0.14)
Flux (0.3-10 keV)
(Observed)
8.1 (+0.5, -0.5) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.48 (+0.17, -0.13) × 10-11 erg cm-2 s-1
Counts to flux (obs)6.25 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)1.13 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
518.12 (549)
Spectrum exposure21.7 ks

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