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Swift-XRT spectra of GRB 120312A

Last updated after receiving ObsID 00517566001, version 14

Data were analysed using HEASOFT version 6.29

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Jump to: Time-averaged|Late Time


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

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+107 s

NH (Galactic)4.98 × 1020 cm-2
NH (intrinsic)4 (+43, -4) × 1020 cm-2
z of absorber0
Photon index1.6 (+0.7, -0.6)
Flux (0.3-10 keV)
(Observed)
2.7 (+1.9, -1.2) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.9 (+1.7, -1.1) × 10-10 erg cm-2 s-1
Counts to flux (obs)4.21 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.63 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
16.47 (16)
Spectrum exposure5 s

PC mode. Mean photon arrival: T0+2967 s

NH (Galactic)4.98 × 1020 cm-2
NH (intrinsic)1.45 (+1.18, -0.96) × 1021 cm-2
z of absorber0
Photon index1.50 (+0.25, -0.24)
Flux (0.3-10 keV)
(Observed)
1.14 (+0.20, -0.17) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.32 (+0.17, -0.14) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.82 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.59 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
173.95 (220)
Spectrum exposure17.8 ks

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Late Time spectrum (T0 + 5512 to 77240 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+12538 s

NH (Galactic)4.98 × 1020 cm-2
NH (intrinsic)1.4 (+2.6, -1.4) × 1021 cm-2
z of absorber0
Photon index2.1 (+0.8, -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)
2.3 (+0.8, -0.6) × 10-13 erg cm-2 s-1
Counts to flux (obs)3.26 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.71 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
44.83 (54)
Spectrum exposure15.7 ks

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