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Swift-XRT spectra of GRB 121201A

Last updated after receiving ObsID 00540178002, version 5.

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The spectral fits assume a redshift: 3.385 (GCN 14035)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 118 to 45596 s)

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WT and PC mode spectra of GRB 121201A

WT mode. Mean photon arrival: T0+131 s

NH (Galactic)2.05 × 1020 cm-2
NH (intrinsic)0 (+3.36 × 1022, -0) cm-2
z of absorber3.385
Photon index1.18 (+0.37, -0.22)
Flux (0.3-10 keV)
(Observed)
2.7 (+0.7, -0.7) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.8 (+0.6, -0.7) × 10-10 erg cm-2 s-1
Counts to flux (obs)4.78 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.90 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
69.09 (103)
Spectrum exposure24 s

PC mode. Mean photon arrival: T0+2617 s

NH (Galactic)2.05 × 1020 cm-2
NH (intrinsic)3.8 (+10.5, -3.8) × 1021 cm-2
z of absorber3.385
Photon index1.52 (+0.13, -0.11)
Flux (0.3-10 keV)
(Observed)
3.8 (+0.4, -0.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.96 (+0.31, -0.28) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.28 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.45 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
303.50 (334)
Spectrum exposure10.7 ks

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Late Time spectrum (T0 + 4459 to 45596 s)

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PC mode spectrum of GRB 121201A

PC mode. Mean photon arrival: T0+10042 s

NH (Galactic)2.05 × 1020 cm-2
NH (intrinsic)1.4 (+2.2, -1.4) × 1022 cm-2
z of absorber3.385
Photon index2.1 (+0.3, -0.3)
Flux (0.3-10 keV)
(Observed)
6.8 (+1.5, -1.2) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
7.9 (+1.4, -1.2) × 10-13 erg cm-2 s-1
Counts to flux (obs)3.15 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.70 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
102.06 (117)
Spectrum exposure9.7 ks

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