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Swift-XRT spectra of GRB 140817A

Last updated after receiving ObsID 00609736002, version 23

Data were analysed using HEASOFT version 6.29

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 98 to 85193 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+321 s

NH (Galactic)8.00 × 1020 cm-2
NH (intrinsic)2.32 (+0.16, -0.16) × 1021 cm-2
z of absorber0
Photon index1.66 (+0.03, -0.03)
Flux (0.3-10 keV)
(Observed)
1.78 (+0.03, -0.03) × 10-9 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.28 (+0.03, -0.03) × 10-9 erg cm-2 s-1
Counts to flux (obs)4.47 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.71 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
867.79 (830)
Spectrum exposure590 s

PC mode. Mean photon arrival: T0+20573 s

NH (Galactic)8.00 × 1020 cm-2
NH (intrinsic)2.2 (+0.4, -0.4) × 1021 cm-2
z of absorber0
Photon index1.85 (+0.10, -0.10)
Flux (0.3-10 keV)
(Observed)
4.67 (+0.27, -0.25) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
6.42 (+0.29, -0.15) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.02 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.52 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
477.15 (494)
Spectrum exposure29.2 ks

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Late Time spectrum (T0 + 4707 to 85193 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+24494 s

NH (Galactic)8.00 × 1020 cm-2
NH (intrinsic)2.2 (+0.5, -0.5) × 1021 cm-2
z of absorber0
Photon index1.87 (+0.11, -0.10)
Flux (0.3-10 keV)
(Observed)
3.37 (+0.21, -0.20) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.66 (+0.24, -0.12) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.97 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.49 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
400.98 (463)
Spectrum exposure28.8 ks

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