Skip banner and navigation tools.

 |  site map

Swift-XRT spectra of GRB 120404A

Last updated after receiving ObsID 00519380006, version 11.

About these products.

Get another burst.

Add time-sliced spectrum.

The spectral fits assume a redshift: 2.87 (GCN 13217)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 136 to 33830 s)

Download spectral files for Time-averaged spectrum.

Plots to download

WT and PC mode spectra of GRB 120404A

WT mode. Mean photon arrival: T0+177 s

NH (Galactic)3.98 × 1020 cm-2
NH (intrinsic)0 (+5.48 × 1021, -0) cm-2
z of absorber2.87
Photon index1.623 (+0.140, -0.067)
Flux (0.3-10 keV)
(Observed)
3.41 (+0.25, -0.33) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.62 (+0.23, -0.27) × 10-10 erg cm-2 s-1
Counts to flux (obs)3.83 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.06 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
270.64 (350)
Spectrum exposure99 s

PC mode. Mean photon arrival: T0+4710 s

NH (Galactic)3.98 × 1020 cm-2
NH (intrinsic)6 (+7, -6) × 1021 cm-2
z of absorber2.87
Photon index1.84 (+0.12, -0.12)
Flux (0.3-10 keV)
(Observed)
6.7 (+0.6, -0.5) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
7.5 (+0.5, -0.4) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.56 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.02 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
323.37 (338)
Spectrum exposure7.8 ks

[Back to top]


Late Time spectrum (T0 + 4740 to 33830 s)

Download spectral files for Late Time spectrum.

Plots to download

PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+7673 s

NH (Galactic)3.98 × 1020 cm-2
NH (intrinsic)8 (+9, -8) × 1021 cm-2
z of absorber2.87
Photon index1.98 (+0.17, -0.16)
Flux (0.3-10 keV)
(Observed)
3.1 (+0.3, -0.3) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.60 (+0.34, -0.26) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.27 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.85 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
247.22 (250)
Spectrum exposure6.6 ks

[Back to top]