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Swift-XRT spectra of GRB 121102A

Last updated after receiving ObsID 00537266001, version 3.

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Time-averaged spectrum (T0 + 53 to 30368 s)

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WT and PC mode spectra of GRB 121102A

WT mode. Mean photon arrival: T0+94 s

NH (Galactic)6.77 × 1021 cm-2
NH (intrinsic)7.0 (+1.8, -1.7) × 1021 cm-2
z of absorber0
Photon index1.89 (+0.14, -0.14)
Flux (0.3-10 keV)
(Observed)
6.7 (+0.4, -0.4) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.23 (+0.13, -0.10) × 10-9 erg cm-2 s-1
Counts to flux (obs)5.46 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)1.01 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
527.26 (569)
Spectrum exposure189 s

PC mode. Mean photon arrival: T0+4296 s

NH (Galactic)6.77 × 1021 cm-2
NH (intrinsic)6.1 (+3.2, -2.7) × 1021 cm-2
z of absorber0
Photon index1.73 (+0.24, -0.23)
Flux (0.3-10 keV)
(Observed)
3.9 (+0.4, -0.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
6.42 (+1.12, -0.73) × 10-12 erg cm-2 s-1
Counts to flux (obs)6.03 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)9.86 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
309.89 (340)
Spectrum exposure13.2 ks

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Late Time spectrum (T0 + 4790 to 30368 s)

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PC mode spectrum of GRB 121102A

PC mode. Mean photon arrival: T0+12803 s

NH (Galactic)6.77 × 1021 cm-2
NH (intrinsic)4 (+6, -4) × 1021 cm-2
z of absorber0
Photon index1.6 (+0.4, -0.4)
Flux (0.3-10 keV)
(Observed)
1.35 (+0.30, -0.24) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.0 (+0.6, -0.3) × 10-12 erg cm-2 s-1
Counts to flux (obs)6.22 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)9.13 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
122.56 (153)
Spectrum exposure11.9 ks

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