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Swift-XRT spectra of GRB 120728A

Last updated after receiving ObsID 00529021000, version 13

Data were analysed using HEASOFT version 6.29

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 151 to 24874 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+155 s

NH (Galactic)6.62 × 1021 cm-2
NH (intrinsic)0 (+1.39 × 1022, -0) cm-2
z of absorber0
Photon index1.9 (+3.5, -0.7)
Flux (0.3-10 keV)
(Observed)
10 (+9, -6) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.1 (+0.8, -0.5) × 10-10 erg cm-2 s-1
Counts to flux (obs)3.37 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.75 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
10.68 (13)
Spectrum exposure8 s

PC mode. Mean photon arrival: T0+5328 s

NH (Galactic)6.62 × 1021 cm-2
NH (intrinsic)0 (+4.05 × 1020, -0) cm-2
z of absorber0
Photon index2.36 (+0.16, -0.11)
Flux (0.3-10 keV)
(Observed)
2.83 (+0.33, -0.23) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
6.298 (+0.033, -1.866) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.59 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)8.00 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
225.92 (256)
Spectrum exposure10.5 ks

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Late Time spectrum (T0 + 5124 to 24874 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+12564 s

NH (Galactic)6.62 × 1021 cm-2
NH (intrinsic)0 (+1.91 × 1021, -0) cm-2
z of absorber0
Photon index2.01 (+0.35, -0.17)
Flux (0.3-10 keV)
(Observed)
1.04 (+0.16, -0.19) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.76 (+0.44, -0.22) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.26 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)7.18 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
104.22 (138)
Spectrum exposure9.5 ks

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