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Proceedings Paper

GPI PSF subtraction with TLOCI: the next evolution in exoplanet/disk high-contrast imaging
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Paper Abstract

A new exoplanet finding algorithm called TLOCI (for Template LOCI) is presented to subtract high-contrast imaging PSFs by “maximizing a companion signal-to-noise ratio”. TLOCI uses an input spectrum and template PSFs to optimize the reference image least-squares coefficients to minimize the flux contamination via self-subtraction of any specific planet in the image, while trying to maximize, at the same time, the noise subtraction. The new algorithm has been developed using on sky Gemini Planet Imager data and has achieved impressive contrast.

Paper Details

Date Published: 21 July 2014
PDF: 13 pages
Proc. SPIE 9148, Adaptive Optics Systems IV, 91480U (21 July 2014); doi: 10.1117/12.2055245
Show Author Affiliations
Christian Marois, National Research Council Canada (Canada)
Carlos Correia, National Research Council Canada (Canada)
Univ. do Porto (Portugal)
Raphael Galicher, National Research Council Canada (Canada)
LESIA, Observatoire de Paris, CNRS (France)
Patrick Ingraham, Stanford Univ. (United States)
Bruce Macintosh, Stanford Univ. (United States)
Thayne Currie, Univ. of Toronto (Canada)
Rob De Rosa, Arizona State Univ. (United States)

Published in SPIE Proceedings Vol. 9148:
Adaptive Optics Systems IV
Enrico Marchetti; Laird M. Close; Jean-Pierre Véran, Editor(s)

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