Image sharpening observations of active galactic nuclei
It is shown that recentering, selecting, and adding up sharp short-exposure images obtained with a photon-counting detector working in time-resolved mode can yield a gain in angular resolution better than a factor of 2. A cross-correlation selection algorithm, appropriate for faint and extended objects, is developed and compared with other image
Campos-Aguilar, A. et al.
Fecha de publicación:
8
1987