Skip banner and navigation tools.

 |  site map

Swift-XRT spectra of GRB 121211A

Last updated after receiving ObsID 00541200004, version 6.

About these products.

Get another burst.

Add time-sliced spectrum.

The spectral fits assume a redshift: 1.023 (GCN 14059)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 95 to 121780 s)

Download spectral files for Time-averaged spectrum.

Plots to download

WT and PC mode spectra of GRB 121211A

WT mode. Mean photon arrival: T0+205 s

NH (Galactic)9.76 × 1019 cm-2
NH (intrinsic)1.21 (+0.08, -0.07) × 1022 cm-2
z of absorber1.023
Photon index1.91 (+0.04, -0.04)
Flux (0.3-10 keV)
(Observed)
4.28 (+0.09, -0.09) × 10-9 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
5.816 (+0.137, -0.093) × 10-9 erg cm-2 s-1
Counts to flux (obs)3.70 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.02 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
723.90 (727)
Spectrum exposure196 s

PC mode. Mean photon arrival: T0+18607 s

NH (Galactic)9.76 × 1019 cm-2
NH (intrinsic)8.1 (+1.7, -1.6) × 1021 cm-2
z of absorber1.023
Photon index1.98 (+0.11, -0.11)
Flux (0.3-10 keV)
(Observed)
2.76 (+0.20, -0.18) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.65 (+0.21, -0.18) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.46 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.58 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
335.11 (388)
Spectrum exposure20.3 ks

[Back to top]


Late Time spectrum (T0 + 4000 to 121780 s)

Download spectral files for Late Time spectrum.

Plots to download

PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+18937 s

NH (Galactic)9.76 × 1019 cm-2
NH (intrinsic)7.9 (+1.7, -1.6) × 1021 cm-2
z of absorber1.023
Photon index1.97 (+0.11, -0.11)
Flux (0.3-10 keV)
(Observed)
2.73 (+0.20, -0.18) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.58 (+0.21, -0.18) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.47 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.56 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
330.30 (386)
Spectrum exposure20.2 ks

[Back to top]