Weekly Report 12Nov2010

Pixon Albedo Imaging Results

Using Eduard Kontar's simulated eventlist files, Pixon Images were created for a compact circular gaussian source with an albedo near disk center, and near the limb. The following parameters were used for each image:

Time: 2-Sep-2002 00:07:36 - 00:08:16
Energy 24keV - 51keV
Detectors 1 t0 4
Image Size: 64 by 64 pixels
Pixel Size: .5 arcsec by .5 arcsec

In each Image below the following convention was used:

Background Image: The original data map supplied by Eduard Kontar
Blue Contours: The Clean Image Contours
White Contours: The Pixon Image Contours

The Contours levels used were: 1%, 3%, 5%, 10%, 30%, 50%, 70%, and 90% of the total flux in the image.

The plots below each image show the flux of a pixel as a function of the distance from the centroid of the source. It is a modification of looking at the flux along a single line through the image. In this method every pixel is plotted so the entire image can be viewed. The following conventions were used in all radial profile plots:

The values of the flux for the original data map were 'normalized' such that the peak value matches the peak value of the Pixon images
The flux values for each pixel in the original data map are black points
The flux values for each pixel in the Pixon image are red points
The flux values for each pixel in the Clean image are green points
The average value of the flux at each radial distance in the original data map is represented by the solid black line
The average value of the flux at each radial distance for the Pixon image is represented by the purple line
The average value of the flux at each radial distance for the Clean image is represented by the cyan line