Post-processing of high-contrast observations of exoplanets
European Southern Observatory, Karl-Schwarzschild-Strasse 2, 85748 Garching, Germany
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Post-processing of images delivered by the eXtreme Adaptive Optics (XAO) instrumentation is a crucial step which can increase achievable contrast even by two orders of magnitude. In this communication I present a new class of algorithms for detection of extrasolar planets from a sequence of adaptive-optics-corrected images. In general, the methods discriminate between real sources and stellar PSF features based on statistics of recorded intensity. The methods are particularly useful in dealing with static speckles which are the greatest obstacle in detecting exoplanets.
© Owned by the authors, published by EDP Sciences, 2011