Swift banner Italian site U.S. site U.K. site

Swift/XRT spectra of GRB 091208B

Last updated using ObsID 00378559013, version 8

Related pages: Burst Analyser | Enhanced position | Light curve | Download obs data | SPER analysis

About these products.

Get another burst.

Create time-sliced spectrum.

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 118 to 46283 s)

Download spectral files for Time-averaged spectrum.

Plots to download

WT and PC mode spectra of GRB 091208B

WT mode. Mean photon arrival: T0+124 s

NH (Galactic)4.9e+20 cm-2
NH (intrinsic)5.1 (+17.8, -5.1) x 1020 cm-2
z of absorber0
Photon index1.81 (+0.69, -0.46)
Flux (0.3-10 keV)
(Observed)		2.12 (+0.77, -0.73) x 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)		2.6 x 10-10 erg cm-2 s-1
Counts to flux (obs)3.8 x 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.6 x 10-11 erg cm-2 ct-1
C-stat (dof)47.46 (48)
Exposure time11 s

PC mode. Mean photon arrival: T0+9146 s

NH (Galactic)4.9e+20 cm-2
NH (intrinsic)8.1 (+1.7, -1.5) x 1021 cm-2
z of absorber1.063
Photon index2.142 (+0.124, -0.070)
Flux (0.3-10 keV)
(Observed)		7.00 (+0.62, -0.67) x 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)		1.1 x 10-11 erg cm-2 s-1
Counts to flux (obs)3.8 x 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.0 x 10-11 erg cm-2 ct-1
C-stat (dof)335.39 (385)
Exposure time9.4 ks

[Back to top]

Late Time spectrum (T0 + 5310 to 46280 s)

Download spectral files for Late Time spectrum.

Plots to download

PC mode spectrum of GRB 091208B

PC mode. Mean photon arrival: T0+13989 s

NH (Galactic)4.9e+20 cm-2
NH (intrinsic)9.0 (+2.2, -2.1) x 1021 cm-2
z of absorber1.063
Photon index2.09 (+0.14, -0.12)
Flux (0.3-10 keV)
(Observed)		3.91 (+0.43, -0.58) x 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)		6.1 x 10-12 erg cm-2 s-1
Counts to flux (obs)3.9 x 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.1 x 10-11 erg cm-2 ct-1
C-stat (dof)268.49 (318)
Exposure time9.0 ks

[Back to top]