Weekly Report 17Sep2010
From RHESSI Wiki
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The plot below shows the flux profile of each image along a line parallel to the Heliocentric X axis. Each solid line shows the profile for an image with different total counts. The dashed line shows the profile of the original data map scaled to match the peak of the trace with the highest flux. | The plot below shows the flux profile of each image along a line parallel to the Heliocentric X axis. Each solid line shows the profile for an image with different total counts. The dashed line shows the profile of the original data map scaled to match the peak of the trace with the highest flux. | ||
[[Image:Profiles 929.jpg|center|thumb|600px|The flux profile along a line parallel to the Heliocentric X axis through the source center for reconstructed Pixon images with different total counts. The dashed line is the profile of the original data map.]] | [[Image:Profiles 929.jpg|center|thumb|600px|The flux profile along a line parallel to the Heliocentric X axis through the source center for reconstructed Pixon images with different total counts. The dashed line is the profile of the original data map.]] | ||
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+ | ====Conclusions==== | ||
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+ | ===Populating the new RHESSI Website=== |
Revision as of 19:13, 19 September 2010
Contents |
Imaging the Albedo with Pixon
The following show Pixon images for simulated data of a point source with albedo. Each image shows the contours for the Pixon reconstruction overlaid on the a map of the original data. Below each image are the profiles for the data and the fit showing the C statistic for each detector. For each image the following parameters were used:
- Time: 2-September-2002 00:07:36 - 00:08:20
- Energy Interval: 24.0 keV - 51.0 keV
- Detectors: All Detectors
- Image Size: 64 X 64
- Pixel Size: .5 X .5
Above each image is the total counts in the final image. Below each image is the source size data as calculated using the 3 sigma source size program written by Rick Pernak.
Reconstructed Pixon Images for a point source with albedo located at heliocentric X = 301 arcsec and Y = 0.0
The total counts in the final image below is: ~10e4 counts
The 3 sigma parameters for the reconstructed image assuming an elliptical source are:
Source Flux: 32.0174 Source X: 301.042 Source Y: -0.0517814 Source FWHM: 4.71759 Eccentricity: 0.253152 Source Angle: 90.0000
The following plot shows the profile for each detector compared with the fitted profile along with the C statistic for each detector.
The total counts in the final image below is: ~10e5 counts
The 3 sigma parameters for the reconstructed image assuming an elliptical source are:
Source Flux: 310.592 Source X: 301.157 Source Y: -0.344853 Source FWHM: 3.94633 Eccentricity: 0.0599250 Source Angle: 107.000
The following plot shows the profile for each detector compared with the fitted profile along with the C statistic for each detector.
The total counts in the final image below is: ~10e6
The 3 sigma parameters for the reconstructed image assuming an elliptical source are:
Source Flux: 1473.15 Source X: 301.232 Source Y: -0.429101 Source FWHM: 4.42663 Eccentricity: 0.260343 Source Angle: 167.000
The following plot shows the profile for each detector compared with the fitted profile along with the C statistic for each detector.
The plot below shows the flux profile of each image along a line parallel to the Heliocentric X axis. Each solid line shows the profile for an image with different total counts. The dashed line shows the profile of the original data map scaled to match the peak of the trace with the highest flux.
Reconstructed Pixon Images for a point source with albedo located at heliocentric X = 929 arcsec and Y = 0.0
The following image shows the original data map with contours for a reconstructed Pixon image with total counts of ~10e4 near the limb.
The 3 sigma parameters for the reconstructed image assuming an elliptical source are:
Source Flux: 31.2434 Source X: 930.370 Source Y: -0.653541 Source FWHM: 3.15973 Eccentricity: 0.623439 Source Angle: 197.000
The following plot shows the profile for each detector compared with the fitted profile along with the C statistic for each detector.
The following image shows the original data map with contours for a reconstructed Pixon image with total counts of ~10e5 near the limb.
The 3 sigma parameters for the reconstructed image assuming an elliptical source are:
Source Flux: 311.739 Source X: 930.703 Source Y: -0.720957 Source FWHM: 3.15171 Eccentricity: 0.642290 Source Angle: 0.00000
The following plot shows the profile for each detector compared with the fitted profile along with the C statistic for each detector.
The following image shows the original data map with contours for a reconstructed Pixon image with total counts of ~10e6 near the limb.
The 3 sigma parameters for the reconstructed image assuming an elliptical source are:
Source Flux: 1532.89 Source X: 930.723 Source Y: -0.440351 Source FWHM: 2.73080 Eccentricity: 0.650604 Source Angle: 183.000
The following plot shows the profile for each detector compared with the fitted profile along with the C statistic for each detector.
The plot below shows the flux profile of each image along a line parallel to the Heliocentric X axis. Each solid line shows the profile for an image with different total counts. The dashed line shows the profile of the original data map scaled to match the peak of the trace with the highest flux.