Skip banner and navigation tools.

 |  site map

Swift-XRT spectra of GRB 210722A

Last updated after receiving ObsID 01061223006, version 11

Data were analysed using HEASOFT version 6.32

About these products.

Get another burst.

Add time-sliced spectrum.

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 91 to 57480 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+163 s

NH (Galactic)2.23 × 1020 cm-2
NH (intrinsic)1.8 (+1.0, -0.9) × 1020 cm-2
z of absorber0
Photon index2.19 (+0.05, -0.05)
Flux (0.3-10 keV)
(Observed)
8.41 (+0.23, -0.23) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
9.58 (+0.23, -0.22) × 10-10 erg cm-2 s-1
Counts to flux (obs)2.93 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.34 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
510.19 (579)
Spectrum exposure294 s

PC mode. Mean photon arrival: T0+5488 s

NH (Galactic)2.23 × 1020 cm-2
NH (intrinsic)0 (+2.22 × 1020, -0) cm-2
z of absorber0
Photon index1.770 (+0.102, -0.061)
Flux (0.3-10 keV)
(Observed)
1.812 (+0.095, -0.114) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.89 (+0.09, -0.10) × 10-11 erg cm-2 s-1
Counts to flux (obs)3.61 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.77 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
388.20 (386)
Spectrum exposure6.5 ks

[Back to top]

Late Time spectrum (T0 + 4505 to 57480 s)

Download spectral files for Late Time spectrum.

Plots to download

PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+11568 s

NH (Galactic)2.23 × 1020 cm-2
NH (intrinsic)5 (+4, -4) × 1020 cm-2
z of absorber0
Photon index1.96 (+0.17, -0.17)
Flux (0.3-10 keV)
(Observed)
6.3 (+0.7, -0.6) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
7.4 (+0.6, -0.5) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.35 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.94 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
266.89 (274)
Spectrum exposure5.5 ks

[Back to top]