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Two Channel Photometric Restoration Algorithm - GIRA

Norbert Pirzkal, Richard N. Hook

Space Telescope - European Coordinating Facility, Karl-Schwarzschild-Str. 2, D-85748 Garching, Germany

Leon B. Lucy

Imperial College, Blackett Lab, SW7 2BZ London, United Kingdom



Abstract:

We describe a novel two channel photometric restoration technique and its implementation as an IRAF task called GIRA. This new method is particularly suited to stellar photometric measurements in crowded fields or in images where an extended background is present. We applied the current implementation of this technique to realistic, and extremely crowded, simulated sets of V and I images which were based on the core region of the globular cluster NGC6712. The results of these tests are presented here.

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Norbert Pirzkal, Richard N. Hook, Leon B. Lucy
1999-04-29

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