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Swift-XRT spectra of GRB 120312A

Last updated after receiving ObsID 00517566001, version 11.

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Time-averaged spectrum (T0 + 105 to 77240 s)

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PC mode spectrum of GRB 120312A

PC mode. Mean photon arrival: T0+2894 s

NH (Galactic)4.98 × 1020 cm-2
NH (intrinsic)1.44 (+1.19, -0.96) × 1021 cm-2
z of absorber0
Photon index1.51 (+0.26, -0.23)
Flux (0.3-10 keV)
(Observed)
1.04 (+0.18, -0.15) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.21 (+0.15, -0.13) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.80 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.57 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
181.89 (219)
Spectrum exposure17.8 ks

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Late Time spectrum (T0 + 5512 to 77240 s)

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PC mode spectrum of GRB 120312A

PC mode. Mean photon arrival: T0+12547 s

NH (Galactic)4.98 × 1020 cm-2
NH (intrinsic)1.0 (+2.4, -1.0) × 1021 cm-2
z of absorber0
Photon index2.0 (+0.7, -0.6)
Flux (0.3-10 keV)
(Observed)
1.6 (+0.7, -0.5) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.1 (+0.4, -0.5) × 10-13 erg cm-2 s-1
Counts to flux (obs)3.37 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.50 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
45.67 (53)
Spectrum exposure15.7 ks

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