Figure 5.5

Figure 5.5: Distributions of extent EP_EXTENT for extended detections in 2XMMi; the maximum allowed extent radius is 80 arcseconds. The area under each curve is normalised to 1. Blue: All detections (the fractional number for EP_EXTENT = 80" is 0.066); red: detections with SUM_FLAG < 3, that is, these are detections for which there is no evidence of problems that might cast doubt on their reality.