Skip banner and navigation tools.

 |  site map

Swift-XRT spectra of GRB 121128A

Last updated after receiving ObsID 00539866007, version 11

Data were analysed using HEASOFT version 6.22

About these products.

Get another burst.

Add time-sliced spectrum.

The spectral fits assume a redshift: 2.2 (GCN 14009)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 83 to 64546 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+117 s

NH (Galactic)3.32 × 1021 cm-2
NH (intrinsic)2.7 (+6.6, -2.7) × 1021 cm-2
z of absorber2.2
Photon index2.346 (+0.112, -0.098)
Flux (0.3-10 keV)
(Observed)
5.9 (+0.4, -0.3) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.10 (+0.06, -0.07) × 10-9 erg cm-2 s-1
Counts to flux (obs)3.11 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.81 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
367.87 (407)
Spectrum exposure108 s

PC mode. Mean photon arrival: T0+4936 s

NH (Galactic)3.32 × 1021 cm-2
NH (intrinsic)5 (+8, -5) × 1021 cm-2
z of absorber2.2
Photon index1.86 (+0.09, -0.09)
Flux (0.3-10 keV)
(Observed)
1.33 (+0.08, -0.07) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.899 (+0.137, -0.077) × 10-11 erg cm-2 s-1
Counts to flux (obs)4.18 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.95 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
468.38 (488)
Spectrum exposure16.6 ks

[Back to top]

Late Time spectrum (T0 + 6936 to 64546 s)

Download spectral files for Late Time spectrum.

Plots to download

PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+22107 s

NH (Galactic)3.32 × 1021 cm-2
NH (intrinsic)6.3 (+18.6, -6.3) × 1021 cm-2
z of absorber2.2
Photon index1.98 (+0.23, -0.20)
Flux (0.3-10 keV)
(Observed)
1.12 (+0.16, -0.14) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.70 (+0.22, -0.20) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.88 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.89 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
170.66 (222)
Spectrum exposure14.3 ks

[Back to top]