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Swift-XRT spectra of GRB 150811A

Last updated after receiving ObsID 00651882008, version 2

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 147 to 50359 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+204 s

NH (Galactic)1.54 × 1021 cm-2
NH (intrinsic)0 (+5.07 × 1020, -0) cm-2
z of absorber0
Photon index2.031 (+0.194, -0.089)
Flux (0.3-10 keV)
(Observed)
2.44 (+0.17, -0.24) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.25 (+0.23, -0.29) × 10-10 erg cm-2 s-1
Counts to flux (obs)3.27 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.36 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
229.02 (310)
Spectrum exposure156 s

PC mode. Mean photon arrival: T0+9077 s

NH (Galactic)1.54 × 1021 cm-2
NH (intrinsic)8 (+9, -8) × 1020 cm-2
z of absorber0
Photon index2.08 (+0.24, -0.22)
Flux (0.3-10 keV)
(Observed)
1.86 (+0.25, -0.22) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.72 (+0.28, -0.31) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.44 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.01 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
179.88 (242)
Spectrum exposure11.7 ks

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Late Time spectrum (T0 + 4218 to 50359 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+11714 s

NH (Galactic)1.54 × 1021 cm-2
NH (intrinsic)6 (+10, -6) × 1020 cm-2
z of absorber0
Photon index2.07 (+0.27, -0.25)
Flux (0.3-10 keV)
(Observed)
1.20 (+0.19, -0.16) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.70 (+0.22, -0.21) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.42 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.87 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
155.48 (207)
Spectrum exposure11.5 ks

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