Weekly Report 10Dec2010
From RHESSI Wiki
RHESSI Website Migration
New additions were made to the RHESSI Website. Some new content was added to site and old content was reformatted. The biggest changes were additional extensions added to the typo3 framework. The most significant of the new additions is the HTML reader. This allows pages written in HTML to be added to typo3, the HTML is stripped and the layout is preserved in typo3 script. I'm currently configuring this, it's not working quite correctly.
RHESSI Imaging Test
The following is a comparison between the observed event on 5Nov2010 and the simulated albedo event near the limb from Eduard Kontar's study.
The image below is the SDO AIA 304 image of the sun during the event.
The box shows the area of the sun where the flare occurred. The purpose of this image is to see if the flare occurs on the disk or if it is occulted. The cutouts of the region the flare occurred in where too tight, unfortunately new requests to the cutout service have not been processed as yet.
The pixon image of the 5Nov2010 flare is below.
The contours on the map are the 1,3,5,10,30,50,70,and 90% contours. The 10% contour is the last closed contour on this map. It's approximately 6 arcsec from the point of highest flux to the 10% contour. The compact source is approximately 4 arcsec in full width. The 10% contour is located at the distance from the pixel with the maximum flux where me might expect the albedo to appear.
The plot below shows the flux as a function of distance from the centroid of the compact source in purple. It is compared to the flux at a given radial distance for a simulated source near the limb in cyan.
The simulated data shows the foreshortening effect. The minimum value drops off quickly while the maximum value shows a bump at the distance from the center where the albedo is expected. The flux profile for the 5Nov2010 shows some similar characteristics. The plots will be remade to check this with the radial distance measured from the pixel with the maximum flux.
RHESSI Albedo Imaging Test
Created overlays of the Clean, Pixon, and UV Smooth simulations.I'm waiting for additional files from Genoa for the rest of the imaging algorithms to create a full set of overlays.
