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Swift-XRT spectra of GRB 120816A

Last updated after receiving ObsID 00531223000, version 13

Data were analysed using HEASOFT version 6.22

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 136 to 12460 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+139 s

NH (Galactic)5.18 × 1021 cm-2
NH (intrinsic)0 (+3.01 × 1022, -0) cm-2
z of absorber0
Photon index1.7 (+1.0, -0.9)
Flux (0.3-10 keV)
(Observed)
2.3 (+2.0, -1.1) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.3 (+1.00 × 1010, -1.2) × 10-10 erg cm-2 s-1
Counts to flux (obs)4.50 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.48 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
18.99 (12)
Spectrum exposure7 s

PC mode. Mean photon arrival: T0+3061 s

NH (Galactic)5.18 × 1021 cm-2
NH (intrinsic)4.4 (+2.4, -2.0) × 1021 cm-2
z of absorber0
Photon index2.01 (+0.25, -0.24)
Flux (0.3-10 keV)
(Observed)
6.3 (+0.8, -0.7) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.18 (+0.25, -0.16) × 10-11 erg cm-2 s-1
Counts to flux (obs)4.80 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)8.98 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
256.63 (295)
Spectrum exposure5.5 ks

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Late Time spectrum (T0 + 4669 to 12460 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+8822 s

NH (Galactic)5.18 × 1021 cm-2
NH (intrinsic)8 (+7, -5) × 1021 cm-2
z of absorber0
Photon index2.2 (+0.6, -0.5)
Flux (0.3-10 keV)
(Observed)
2.1 (+0.5, -0.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
5.0 (+4.7, -1.6) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.58 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)1.12 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
93.39 (107)
Spectrum exposure4.1 ks

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