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Swift-XRT spectra of GRB 180727A

Last updated after receiving ObsID 00850231002, version 12

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 75 to 21712 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+85 s

NH (Galactic)2.10 × 1020 cm-2
NH (intrinsic)1.7 (+2.6, -1.7) × 1021 cm-2
z of absorber0
Photon index2.3 (+0.9, -0.7)
Flux (0.3-10 keV)
(Observed)
8.8 (+4.0, -2.7) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.4 (+0.5, -0.4) × 10-10 erg cm-2 s-1
Counts to flux (obs)2.59 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.08 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
44.49 (59)
Spectrum exposure24 s

PC mode. Mean photon arrival: T0+1773 s

NH (Galactic)2.10 × 1020 cm-2
NH (intrinsic)1.5 (+1.7, -1.3) × 1021 cm-2
z of absorber0
Photon index1.8 (+0.4, -0.4)
Flux (0.3-10 keV)
(Observed)
1.5 (+0.4, -0.3) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.9 (+0.4, -0.3) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.97 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.90 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
81.98 (93)
Spectrum exposure4.0 ks

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Late Time spectrum (T0 + 4070 to 21712 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+5674 s

NH (Galactic)2.10 × 1020 cm-2
NH (intrinsic)9 (+37, -9) × 1020 cm-2
z of absorber0
Photon index1.89 (+1.01, -0.65)
Flux (0.3-10 keV)
(Observed)
3.8 (+2.3, -1.4) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.7 (+1.9, -1.5) × 10-13 erg cm-2 s-1
Counts to flux (obs)3.57 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.31 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
32.28 (29)
Spectrum exposure3.9 ks

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