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On advanced estimation techniques for exoplanet detection and characterization using ground-based coronagraphs

Show simple item record Lawson, Peter R. Frazin, Richard Barrett, Harrison Caucci, Luca Devaney, Nicholas Furenlid, Lars Gladysz, Szymon Guyon, Olivier Krist, John Maire, Jerome Marois, Christian Mawet, Dimitri Mouillet, David Mugnier, Laurent Perrin, Marshall Poyneer, Lisa Pueyo, Laurent Savransky, Dmitry Soummer, Remi 2013-02-13T21:50:51Z 2013-02-13T21:50:51Z 2012-07-05
dc.identifier.citation SPIE Adaptive Optics Systems III Amsterdam, Netherlands, July 1-6, 2012 en_US
dc.identifier.clearanceno 12-2770
dc.description.abstract The direct imaging of planets around nearby stars is exceedingly difficult. Only about 14 exoplanets have been imaged to date that have masses less than 13 times that of Jupiter. The next generation of planet-finding coronagraphs, including VLT-SPHERE, the Gemini Planet Imager, Palomar P1640, and Subaru HiCIAO have predicted contrast performance of roughly a thousand times less than would be needed to detect Earth-like planets . In this paper we review the state of the art in exoplanet imaging, most notably the method of Locally Optimized Combination of Images (LOCI), and we investigate the potential of improving the detectability of faint exoplanets through the use of advanced statistical methods based on the concepts of the ideal observer and the Hotelling observer. We provide a formal comparison of techniques through a blind data challenge and evaluate performance using the Receiver Operating Characteristic (ROC) and Localization ROC (LROC) curves. We place particular emphasis on the understanding and modeling of realistic sources of measurement noise in ground-based AO-corrected coronagraphs. The work reported in this paper is the result of interactions between the co-authors during a week-long workshop on exoplanet imaging that was held in Squaw Valley, California, in March of 2012. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012. en_US
dc.subject coronagraphs en_US
dc.subject exoplanets en_US
dc.subject adaptive optics en_US
dc.subject instrumentation en_US
dc.subject astronomy en_US
dc.title On advanced estimation techniques for exoplanet detection and characterization using ground-based coronagraphs en_US
dc.type Preprint en_US
dc.subject.NASATaxonomy Instrumentation and Photography en_US

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