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Swift-XRT spectra of GRB 090401B

Last updated after receiving ObsID 00348152012, version 14

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 79 to 53439 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+416 s

NH (Galactic)3.76 × 1021 cm-2
NH (intrinsic)1.83 (+0.21, -0.20) × 1021 cm-2
z of absorber0
Photon index1.669 (+0.027, -0.027)
Flux (0.3-10 keV)
(Observed)
1.363 (+0.020, -0.020) × 10-9 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.890 (+0.026, -0.024) × 10-9 erg cm-2 s-1
Counts to flux (obs)4.95 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.86 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
885.43 (851)
Spectrum exposure1.3 ks

PC mode. Mean photon arrival: T0+17102 s

NH (Galactic)3.76 × 1021 cm-2
NH (intrinsic)1.6 (+0.7, -0.6) × 1021 cm-2
z of absorber0
Photon index1.814 (+0.103, -0.098)
Flux (0.3-10 keV)
(Observed)
7.2 (+0.4, -0.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.062 (+0.030, -0.054) × 10-11 erg cm-2 s-1
Counts to flux (obs)4.58 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.77 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
520.37 (539)
Spectrum exposure22.1 ks

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Late Time spectrum (T0 + 4755 to 53439 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+17102 s

NH (Galactic)3.76 × 1021 cm-2
NH (intrinsic)1.6 (+0.7, -0.6) × 1021 cm-2
z of absorber0
Photon index1.814 (+0.103, -0.098)
Flux (0.3-10 keV)
(Observed)
7.2 (+0.4, -0.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.062 (+0.030, -0.054) × 10-11 erg cm-2 s-1
Counts to flux (obs)4.58 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.77 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
520.37 (539)
Spectrum exposure22.1 ks

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