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Swift-XRT light curves of GRB 081221
Last updated after receiving ObsID 00337889007, version 16
Data were analysed using HEASOFT version 6.35.2
Rebin this light curve| About these products.
Jump to: Energy light curves | Count-rate light curves.
The light curve plots support interactive zooming and exploring. See the jsPlot documentation for details.
50 snapshots of PC data are unreliable because no centroid could be determined. 8 bins are affected and have been hidden [Why does this matter?]. List affected times/bins.
Energy light curves
NEW Show:
Flux Light Curve
For this burst, 1 count = 3.43 x 10-11 erg cm-2 (observed flux) (Automatic spectrum).
Note that this is an time-averaged conversion factor: the true value may evolve with time.
[What is this?][View systematics and position variation]
Generate postscript plot | Data file.
Intrinsic Luminosity Light Curve
The light curve below shows the unabsorbed luminosity in the GRB comoving frame 0.3-10 keV band. The assumed redshift is 2.26, the photon index is 2.21. The counts-to-unabsorbed flux conversion factor is 6.0 x 10-11 erg cm-2 ct-1. The full conversion from counts to luminosity, including distance and k-correction is 3.2 x 1048 erg ct-1. Details were taken from the -mode automated spectral fit Note that these are time-averaged values: the true properties may evolve with time.
[What is this?][View systematics and position variation]
Generate postscript plot | Data file.
Count-rate light curves
Basic Light Curve
[What is this?][View systematics and position variation]
Generate postscript plot | Data file.
Detailed Light Curve
[What is this?][View systematics and position variation]
Generate postscript plot | Data file.
Hardness Ratio
[What is this?][View systematics and position variation]
Generate postscript plot | Data file.
View systematics and position variation
Data products
Download all light curve files for this burst: [tar file][gzipped tar file][zip file].
Or download individual files: (Includes systematic error. Includes data with no WT centroid.)
- Flux Light Curve (postscript)
- Flux Light Curve (ascii data)
- Count-rate Light Curve (postscript)
- Count-rate Light Curve (ascii data)
- Detailed light Curve (postscript)
- Detailed light Curve (ascii data)
- Hardness ratio (postscript)
- Hardness ratio (ascii data)
- Basic Photon Counting data (ascii)
- Detailed Photon Counting data (ascii)
- Basic Windowed Timing data (ascii)
- Detailed Windowed Timing data (ascii)
- WT mode source event list
- WT mode background event list
- PC mode source event list
- PC mode background event list