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Swift-XRT spectra of GRB 150911A

Last updated after receiving ObsID 00655262005, version 4

Data were analysed using HEASOFT version 6.26.1

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 83 to 39763 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+118 s

NH (Galactic)1.87 × 1021 cm-2
NH (intrinsic)1.1 (+0.5, -0.5) × 1021 cm-2
z of absorber0
Photon index1.60 (+0.10, -0.10)
Flux (0.3-10 keV)
(Observed)
8.2 (+0.5, -0.5) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.03 (+0.05, -0.05) × 10-9 erg cm-2 s-1
Counts to flux (obs)4.55 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.67 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
489.43 (518)
Spectrum exposure114 s

PC mode. Mean photon arrival: T0+6699 s

NH (Galactic)1.87 × 1021 cm-2
NH (intrinsic)2.6 (+0.8, -0.7) × 1021 cm-2
z of absorber0
Photon index2.02 (+0.14, -0.13)
Flux (0.3-10 keV)
(Observed)
4.9 (+0.4, -0.3) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
7.9 (+0.7, -0.6) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.94 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.34 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
391.24 (429)
Spectrum exposure16.4 ks

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Late Time spectrum (T0 + 4922 to 39763 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+10161 s

NH (Galactic)1.87 × 1021 cm-2
NH (intrinsic)2.5 (+0.9, -0.8) × 1021 cm-2
z of absorber0
Photon index2.08 (+0.17, -0.17)
Flux (0.3-10 keV)
(Observed)
2.70 (+0.25, -0.23) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.5 (+0.6, -0.4) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.78 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.32 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
333.09 (345)
Spectrum exposure14.9 ks

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