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Swift-XRT spectra of GRB 150817A

Last updated after receiving ObsID 00652334003, version 15

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 71 to 46612 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+84 s

NH (Galactic)2.71 × 1021 cm-2
NH (intrinsic)1.4 (+1.8, -1.4) × 1021 cm-2
z of absorber0
Photon index2.1 (+0.3, -0.3)
Flux (0.3-10 keV)
(Observed)
3.2 (+0.7, -0.5) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
5.30 (+1.31, -0.82) × 10-10 erg cm-2 s-1
Counts to flux (obs)3.44 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.61 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
133.03 (184)
Spectrum exposure32 s

PC mode. Mean photon arrival: T0+14571 s

NH (Galactic)2.71 × 1021 cm-2
NH (intrinsic)1.5 (+0.7, -0.6) × 1021 cm-2
z of absorber0
Photon index1.71 (+0.11, -0.10)
Flux (0.3-10 keV)
(Observed)
6.9 (+0.4, -0.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
9.4 (+0.5, -0.5) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.67 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.35 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
475.50 (516)
Spectrum exposure19.6 ks

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Late Time spectrum (T0 + 4000 to 46612 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+15393 s

NH (Galactic)2.71 × 1021 cm-2
NH (intrinsic)1.7 (+0.7, -0.6) × 1021 cm-2
z of absorber0
Photon index1.72 (+0.11, -0.11)
Flux (0.3-10 keV)
(Observed)
6.4 (+0.4, -0.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
8.7 (+0.5, -0.4) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.67 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.41 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
483.61 (509)
Spectrum exposure19.5 ks

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