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Proceedings Paper

Frame combination techniques for ultra-high-contrast imaging
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Paper Abstract

We summarize here an experimental frame combination pipeline we developed for ultra high-contrast imaging with systems like the upcoming VLT SPHERE instrument. The pipeline combines strategies from the Drizzle technique, the Spitzer IRACproc package, and homegrown codes, to combine image sets that may include a rotating field of view and arbitrary shifts between frames. The pipeline is meant to be robust at dealing with data that may contain non-ideal effects like sub-pixel pointing errors, missing data points, non-symmetrical noise sources, arbitrary geometric distortions, and rapidly changing point spread functions. We summarize in this document individual steps and strategies, as well as results from preliminary tests and simulations.

Paper Details

Date Published: 9 July 2008
PDF: 9 pages
Proc. SPIE 7014, Ground-based and Airborne Instrumentation for Astronomy II, 70143I (9 July 2008); doi: 10.1117/12.789172
Show Author Affiliations
Joseph C. Carson, Max-Planck-Institut für Astronomie (Germany)
Markus Feldt, Max-Planck-Institut für Astronomie (Germany)
Silvano Desidera, Osservatorio Astronomico di Padova (Italy)
Maud Langlois, Lab. d'Astrophysique de Marseille (France)
Franco Joos, Institut für Astronomie, ETH Zürich (Switzerland)
David Mouillet, Lab. d'Astrophysique de l'Observatoire de Grenoble (France)
Jean-Luc Beuzit, Lab. d'Astrophysique de l'Observatoire de Grenoble (France)

Published in SPIE Proceedings Vol. 7014:
Ground-based and Airborne Instrumentation for Astronomy II
Ian S. McLean; Mark M. Casali, Editor(s)

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