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Swift-XRT spectra of GRB 130427A
Last updated after receiving ObsID 00554620162, version 11
Data were analysed using HEASOFT version 6.35.2
The spectral fits assume a redshift: 0.34 (GCN 14455)
Non-standard pipeline processing was used to produce these data. The pointing accuracy requirements for the first snapshot has been removed, and the UVOT-derived attitude file used.
Jump to: Time-averaged|Late Time
Time-averaged spectrum (T0 + 143 to 59810 s)
Download spectral files for Time-averaged spectrum.
Plots to download
- both modes ps file
- both modes gif file
- wt mode ps file
- wt mode gif file
- pc mode ps file
- pc mode gif file
WT mode. Mean photon arrival: T0+1171 s
| NH (Galactic) | 1.91 × 1020 cm-2 |
|---|---|
| NH (intrinsic) | 3.1 (+0.7, -0.7) × 1020 cm-2 |
| z of absorber | 0.34 |
| Photon index | 1.506 (+0.014, -0.014) |
| Flux (0.3-10 keV) (Observed) | 7.59 (+0.07, -0.07) × 10-9 erg cm-2 s-1 |
| Flux (0.3-10 keV) (Unabsorbed) | 7.93 (+0.07, -0.06) × 10-9 erg cm-2 s-1 |
| Counts to flux (obs) | 4.16 × 10-11 erg cm-2 ct-1 |
| Counts to flux (unabs) | 4.34 × 10-11 erg cm-2 ct-1 |
| W-stat (dof) What's this? | 1523.06 (899) |
| Spectrum exposure | 1.9 ks |
PC mode. Mean photon arrival: T0+43954 s
| NH (Galactic) | 1.91 × 1020 cm-2 |
|---|---|
| NH (intrinsic) | 1.1 (+0.4, -0.4) × 1021 cm-2 |
| z of absorber | 0.34 |
| Photon index | 1.69 (+0.08, -0.08) |
| Flux (0.3-10 keV) (Observed) | 8.7 (+0.5, -0.4) × 10-11 erg cm-2 s-1 |
| Flux (0.3-10 keV) (Unabsorbed) | 9.7 (+0.4, -0.4) × 10-11 erg cm-2 s-1 |
| Counts to flux (obs) | 3.91 × 10-11 erg cm-2 ct-1 |
| Counts to flux (unabs) | 4.36 × 10-11 erg cm-2 ct-1 |
| W-stat (dof) What's this? | 447.40 (516) |
| Spectrum exposure | 4.1 ks |
Late Time spectrum (T0 + 22844 to 59810 s)
Download spectral files for Late Time spectrum.
Plots to download
PC mode. Mean photon arrival: T0+43954 s
| NH (Galactic) | 1.91 × 1020 cm-2 |
|---|---|
| NH (intrinsic) | 1.1 (+0.4, -0.4) × 1021 cm-2 |
| z of absorber | 0.34 |
| Photon index | 1.69 (+0.08, -0.08) |
| Flux (0.3-10 keV) (Observed) | 8.7 (+0.5, -0.4) × 10-11 erg cm-2 s-1 |
| Flux (0.3-10 keV) (Unabsorbed) | 9.7 (+0.4, -0.4) × 10-11 erg cm-2 s-1 |
| Counts to flux (obs) | 3.92 × 10-11 erg cm-2 ct-1 |
| Counts to flux (unabs) | 4.36 × 10-11 erg cm-2 ct-1 |
| W-stat (dof) What's this? | 447.40 (516) |
| Spectrum exposure | 4.1 ks |