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Swift-XRT spectra of GRB 130508A

Last updated after receiving ObsID 00555413001, version 13.

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Time-averaged spectrum (T0 + 134 to 75113 s)

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WT and PC mode spectra of GRB 130508A

WT mode. Mean photon arrival: T0+146 s

NH (Galactic)9.16 × 1021 cm-2
NH (intrinsic)2.0 (+6.9, -2.0) × 1022 cm-2
z of absorber0
Photon index1.0 (+1.8, -1.3)
Flux (0.3-10 keV)
(Observed)
2.11 (+1.49, -0.88) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.83 (+2.39, -0.92) × 10-10 erg cm-2 s-1
Counts to flux (obs)8.38 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)1.12 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
41.91 (51)
Spectrum exposure24 s

PC mode. Mean photon arrival: T0+1728 s

NH (Galactic)9.16 × 1021 cm-2
NH (intrinsic)2.2 (+1.9, -1.4) × 1022 cm-2
z of absorber0
Photon index1.2 (+0.7, -0.6)
Flux (0.3-10 keV)
(Observed)
8.5 (+2.4, -1.9) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.21 (+0.57, -0.23) × 10-12 erg cm-2 s-1
Counts to flux (obs)1.01 × 10-10 erg cm-2 ct-1
Counts to flux (unabs)1.43 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
145.09 (120)
Spectrum exposure18.4 ks

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Late Time spectrum (T0 + 4000 to 75113 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+22216 s

NH (Galactic)9.16 × 1021 cm-2
NH (intrinsic)1.4 (+22.0, -1.4) × 1022 cm-2
z of absorber0
Photon index0.1 (+2.0, -1.4)
Flux (0.3-10 keV)
(Observed)
8.7 (+20.1, -6.1) × 10-14 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
9.6 (+20.4, -5.6) × 10-14 erg cm-2 s-1
Counts to flux (obs)1.80 × 10-10 erg cm-2 ct-1
Counts to flux (unabs)1.98 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
5.21 (7)
Spectrum exposure17.8 ks

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