Skip banner and navigation tools.

 |  site map

Swift-XRT spectra of GRB 250807B

Last updated after receiving ObsID 01340561002, version 6

Data were analysed using HEASOFT version 6.35.2

About these products.

Get another burst.

Add time-sliced spectrum.

The spectral fits assume a redshift: 1.522 (GCN 41289)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 150 to 65918 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+232 s

NH (Galactic)1.87 × 1020 cm-2
NH (intrinsic)1.5 (+1.0, -0.9) × 1021 cm-2
z of absorber1.522
Photon index1.95 (+0.07, -0.06)
Flux (0.3-10 keV)
(Observed)
6.78 (+0.28, -0.27) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
7.43 (+0.25, -0.25) × 10-10 erg cm-2 s-1
Counts to flux (obs)3.23 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.54 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
466.74 (522)
Spectrum exposure188 s

PC mode. Mean photon arrival: T0+8610 s

NH (Galactic)1.87 × 1020 cm-2
NH (intrinsic)2.5 (+3.0, -2.5) × 1021 cm-2
z of absorber1.522
Photon index1.93 (+0.19, -0.18)
Flux (0.3-10 keV)
(Observed)
2.37 (+0.30, -0.26) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.65 (+0.27, -0.25) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.41 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.81 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
204.31 (224)
Spectrum exposure7.7 ks

[Back to top]

Late Time spectrum (T0 + 4000 to 65918 s)

Download spectral files for Late Time spectrum.

Plots to download

PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+9146 s

NH (Galactic)1.87 × 1020 cm-2
NH (intrinsic)2.4 (+3.2, -2.4) × 1021 cm-2
z of absorber1.522
Photon index1.93 (+0.20, -0.19)
Flux (0.3-10 keV)
(Observed)
2.22 (+0.30, -0.26) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.47 (+0.26, -0.24) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.43 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.82 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
192.86 (212)
Spectrum exposure7.4 ks

[Back to top]