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Swift-XRT spectra of GRB 170728B

Last updated after receiving ObsID 00765130009, version 4

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 472 to 19247 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+584 s

NH (Galactic)3.17 × 1020 cm-2
NH (intrinsic)2.3 (+0.4, -0.4) × 1021 cm-2
z of absorber0
Photon index2.02 (+0.12, -0.11)
Flux (0.3-10 keV)
(Observed)
3.20 (+0.21, -0.20) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.63 (+0.24, -0.26) × 10-10 erg cm-2 s-1
Counts to flux (obs)3.48 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.04 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
468.47 (459)
Spectrum exposure228 s

PC mode. Mean photon arrival: T0+7045 s

NH (Galactic)3.17 × 1020 cm-2
NH (intrinsic)2.05 (+0.30, -0.29) × 1021 cm-2
z of absorber0
Photon index1.79 (+0.07, -0.07)
Flux (0.3-10 keV)
(Observed)
4.29 (+0.19, -0.18) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
5.56 (+0.20, -0.18) × 10-11 erg cm-2 s-1
Counts to flux (obs)4.05 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.25 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
558.86 (586)
Spectrum exposure8.5 ks

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Late Time spectrum (T0 + 6231 to 19247 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+10603 s

NH (Galactic)3.17 × 1020 cm-2
NH (intrinsic)2.2 (+0.4, -0.4) × 1021 cm-2
z of absorber0
Photon index1.82 (+0.10, -0.09)
Flux (0.3-10 keV)
(Observed)
2.45 (+0.14, -0.13) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.24 (+0.15, -0.14) × 10-11 erg cm-2 s-1
Counts to flux (obs)4.02 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.33 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
469.91 (507)
Spectrum exposure6.3 ks

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