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Swift-XRT spectra of GRB 130315A

Last updated after receiving ObsID 00551126004, version 9.

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Time-averaged spectrum (T0 + 167 to 56830 s)

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WT and PC mode spectra of GRB 130315A

WT mode. Mean photon arrival: T0+244 s

NH (Galactic)3.63 × 1021 cm-2
NH (intrinsic)0 (+1.30 × 1020, -0) cm-2
z of absorber0
Photon index1.388 (+0.038, -0.016)
Flux (0.3-10 keV)
(Observed)
2.48 (+0.06, -0.05) × 10-9 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.93 (+0.04, -0.06) × 10-9 erg cm-2 s-1
Counts to flux (obs)5.39 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.37 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
789.00 (798)
Spectrum exposure292 s

PC mode. Mean photon arrival: T0+12555 s

NH (Galactic)3.63 × 1021 cm-2
NH (intrinsic)2.3 (+14.1, -2.3) × 1020 cm-2
z of absorber0
Photon index1.91 (+0.26, -0.19)
Flux (0.3-10 keV)
(Observed)
1.34 (+0.20, -0.18) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.97 (+0.32, -0.18) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.09 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.02 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
168.81 (231)
Spectrum exposure16.9 ks

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Late Time spectrum (T0 + 4000 to 56830 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+19530 s

NH (Galactic)3.63 × 1021 cm-2
NH (intrinsic)2.9 (+21.2, -2.9) × 1020 cm-2
z of absorber0
Photon index1.87 (+0.37, -0.24)
Flux (0.3-10 keV)
(Observed)
6.7 (+1.3, -1.1) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
9.8 (+2.3, -1.2) × 10-13 erg cm-2 s-1
Counts to flux (obs)4.23 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.15 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
115.41 (167)
Spectrum exposure16.7 ks

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