Skip banner and navigation tools.

 |  site map

Swift-XRT spectra of GRB 080928

Last updated after receiving ObsID 00326115003, version 9

Data were analysed using HEASOFT version 6.32

About these products.

Get another burst.

Add time-sliced spectrum.

The spectral fits assume a redshift: 1.69 (GCN 8301)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 175 to 33427 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+277 s

NH (Galactic)7.17 × 1020 cm-2
NH (intrinsic)6.5 (+1.1, -1.0) × 1021 cm-2
z of absorber1.69
Photon index1.457 (+0.028, -0.028)
Flux (0.3-10 keV)
(Observed)
3.83 (+0.08, -0.08) × 10-9 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.27 (+0.07, -0.07) × 10-9 erg cm-2 s-1
Counts to flux (obs)4.63 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.17 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
749.62 (788)
Spectrum exposure301 s

PC mode. Mean photon arrival: T0+10176 s

NH (Galactic)7.17 × 1020 cm-2
NH (intrinsic)3.6 (+2.3, -2.2) × 1021 cm-2
z of absorber1.69
Photon index2.018 (+0.102, -0.099)
Flux (0.3-10 keV)
(Observed)
5.6 (+0.4, -0.3) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
6.9 (+0.4, -0.4) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.29 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.11 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
368.82 (384)
Spectrum exposure13.2 ks

[Back to top]

Late Time spectrum (T0 + 4231 to 33427 s)

Download spectral files for Late Time spectrum.

Plots to download

PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+10176 s

NH (Galactic)7.17 × 1020 cm-2
NH (intrinsic)3.6 (+2.3, -2.2) × 1021 cm-2
z of absorber1.69
Photon index2.018 (+0.102, -0.099)
Flux (0.3-10 keV)
(Observed)
5.6 (+0.4, -0.3) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
6.9 (+0.4, -0.4) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.29 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.11 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
368.82 (384)
Spectrum exposure13.2 ks

[Back to top]