Skip banner and navigation tools.

 |  site map

Swift-XRT spectra of GRB 170912A

Last updated after receiving ObsID 00772006003, version 8

Data were analysed using HEASOFT version 6.26.1

About these products.

Get another burst.

Add time-sliced spectrum.

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 122 to 17002 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+129 s

NH (Galactic)3.14 × 1021 cm-2
NH (intrinsic)0 (+1.49 × 1021, -0) cm-2
z of absorber0
Photon index2.7 (+0.8, -0.4)
Flux (0.3-10 keV)
(Observed)
10.0 (+3.5, -2.9) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.4 (+1.3, -1.2) × 10-10 erg cm-2 s-1
Counts to flux (obs)2.49 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.88 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
37.92 (51)
Spectrum exposure17 s

PC mode. Mean photon arrival: T0+3012 s

NH (Galactic)3.14 × 1021 cm-2
NH (intrinsic)0 (+1.30 × 1021, -0) cm-2
z of absorber0
Photon index1.96 (+0.41, -0.20)
Flux (0.3-10 keV)
(Observed)
1.54 (+0.28, -0.34) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.1 (+0.6, -0.5) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.73 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.10 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
82.26 (94)
Spectrum exposure3.5 ks

[Back to top]

Late Time spectrum (T0 + 5480 to 17002 s)

Download spectral files for Late Time spectrum.

Plots to download

PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+13532 s

NH (Galactic)3.14 × 1021 cm-2
NH (intrinsic)0 (+1.03 × 1022, -0) cm-2
z of absorber0
Photon index1.12 (+1.35, -0.44)
Flux (0.3-10 keV)
(Observed)
7 (+4, -3) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
7 (+4, -3) × 10-13 erg cm-2 s-1
Counts to flux (obs)5.99 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.57 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
27.53 (19)
Spectrum exposure2.2 ks

[Back to top]