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GRB 091018
The Swift Burst Analyser — GRB 091018
Last updated using ObsID 00373172000, version 22;
Data were analysed using HEASOFT version 6.35.2
From 2016 January, the light curve plots support interactive zooming and exploring. See the jsPlot documentation for details.
Also, from the same date, the first plot on this page is the observed flux
in the native band of each instrument (including UVOT where available).
Jump to: Observed flux | BAT+XRT | BAT | XRT | BAT no evolution.
Downloads: BAT spectral evolution data | XRT spectral evolution data | All files for this object: [tar][tar.gz][zip].
The BAT spectrum was fitted with a cut-off power-law. The cutoff energy was 54.6 keV and was not allowed to evolve. See caveats for details.
All data uses absorption NH=0.031 × 1022 cm-2 at z=0 and 0.32 × 1022 cm-2 at z=0.971.
(Source: the late-time spectrum from the XRT spectrum repository).
Observed BAT+XRT+UVOT flux
Show Observed Flux hardness ratio.
■ BAT
■ XRT (all modes)
Observed flux density, with photon index sub plot. BAT binning: SNR 5.
Show full observed flux Observed flux density plot controls.
Generate postscript plot | Data file.
BAT-XRT unabsorbed flux light curves
Flux density at 10 keV, with photon index sub plot. BAT binning: SNR 5.
Show full BAT-XRT Flux density at 10 keV plot controls.
Generate postscript plot | Data file.
BAT unabsorbed flux light curves
Flux density at 10 keV, with photon index sub plot. BAT binning: SNR 5.
Show full BAT Flux density at 10 keV plot controls.
Generate postscript plot | Data file.
XRT unabsorbed flux light curves
Flux density at 10 keV, with photon index sub plot. BAT binning: SNR 5.
Show full XRT Flux density at 10 keV plot controls.
Generate postscript plot | Data file.
The fit to the T90 spectrum was used to create the plots in this section.
T90 was 4.4, from 0.2 to 4.6
The spectral fit used was a cut-off power-law with photon index: 1.60 and cut-off energy 54.6 keV.
Count-rate light curves are available from GCN.
BAT unabsorbed flux light curves, no spectral evolution
Flux density at 10 keV. BAT binning: SNR 5.
Show full BAT, no spectral evolution Flux density at 10 keV plot controls.
Generate postscript plot | Data file.