Speckle Noise Attenuation in Coronagraphy and High-Contrast Imaging

Details Speckle Noise Attenuation in Coronagraphy and High-Contrast Imaging Speckle Noise Attenuation in Coronagraphy and High-Contrast Imaging

Jun 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007lyot.confe..27m&link_type=abstract

Proceedings of the conference In the Spirit of Bernard Lyot: The Direct Detection of Planets and Circumstellar Disks in the 21s

Physics

Optics

Scientific paper

I will review the current progress in speckle noise (static, quasi-static and atmospheric) attenuation involving several observational strategies and data reduction schemes to attenuate the speckle noise and to recover the flux from faint exoplanets. I will mainly focus on the Angular Differential Imaging, the Speckle Symmetry and the Simultaneous Spectral Differential Imaging techniques. I will present the speckle noise attenuation performances obtained using such techniques with current adaptive optics systems and some very interesting discoveries made with them, as well as the modeling effort to predict the expected contrast when using these techniques with future instruments like the Gemini Planet Imager.

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