Skip banner and navigation tools.

 |  site map

Swift-XRT spectra of GRB 121211A

Last updated after receiving ObsID 00541200004, version 7

Data were analysed using HEASOFT version 6.29

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 121785 s)

Download spectral files for Time-averaged spectrum.

Plots to download

WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+205 s

NH (Galactic)9.76 × 1019 cm-2
NH (intrinsic)1.27 (+0.08, -0.07) × 1022 cm-2
z of absorber1.023
Photon index1.90 (+0.04, -0.03)
Flux (0.3-10 keV)
(Observed)
4.16 (+0.09, -0.09) × 10-9 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
5.66 (+0.11, -0.10) × 10-9 erg cm-2 s-1
Counts to flux (obs)3.72 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.07 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
746.57 (737)
Spectrum exposure199 s

PC mode. Mean photon arrival: T0+19120 s

NH (Galactic)9.76 × 1019 cm-2
NH (intrinsic)7.8 (+1.7, -1.6) × 1021 cm-2
z of absorber1.023
Photon index1.97 (+0.11, -0.11)
Flux (0.3-10 keV)
(Observed)
3.11 (+0.23, -0.21) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.06 (+0.24, -0.23) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.48 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.55 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
327.02 (386)
Spectrum exposure20.4 ks

[Back to top]

Late Time spectrum (T0 + 4002 to 121785 s)

Download spectral files for Late Time spectrum.

Plots to download

PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+19290 s

NH (Galactic)9.76 × 1019 cm-2
NH (intrinsic)7.6 (+1.7, -1.6) × 1021 cm-2
z of absorber1.023
Photon index1.97 (+0.11, -0.11)
Flux (0.3-10 keV)
(Observed)
3.05 (+0.22, -0.21) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.98 (+0.24, -0.22) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.48 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.54 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
320.38 (386)
Spectrum exposure20.3 ks

[Back to top]