| 23 | 23 | Unfortunately, the technique is not perfect. The two images below show a different image (o5353g0100o.XY20) with somewhat similar features. In this case, the excess flux comes from dark glows in the relatively poor corners (near the area masked for bad CTE and dark current). In this example, these detections are not efficiently culled from these images with the new technique. (The left image is unsmoothed; the right has a 2.0 sigma Gaussian smoothing applied). The difficulty in this case is that these detections land on very low significance fluctuations in the background -- according to the significance image, they are significant (if barely), and the intervening cols are below the minimum threshold. Formally, these are significant. |
