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Proceedings Paper

Comparative optical analysis of extrasolar planetary imaging techniques
Author(s): Richard G. Lyon; Jan M. Hollis; John E. Dorband
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Paper Abstract

We discuss intermediary results of our on-going study of filled aperture coronagraphic imaging methods for detection and characterization of extra-solar planets from a space-based telescope. Chosen are three high contrast imaging methods which are currently under investigation as part of NASA's Terrestrial Planet Finder study. Developed are analytical and computational models for three techniques that include: (i) an apodized square aperture telescope, (ii) Lyot stop coronagraph, and (iii) Spergel/Kasdin pupil. Each of the techniques is quantitatively compared and contrasted utilizing the in-pixel contrast ratio, signal-to-noise, and detection zone as metrics. The results are parameterized with respect to planetary to angular separation, planet to stellar luminosity ratio, and aperture or baseline size. We ultimately desire a compact formalism to compare and contrast different techniques, for extra-solar planetary detection, on equal footing, from an optical detection theory point of view.

Paper Details

Date Published: 3 March 2003
PDF: 15 pages
Proc. SPIE 4860, High-Contrast Imaging for Exo-Planet Detection, (3 March 2003); doi: 10.1117/12.457645
Show Author Affiliations
Richard G. Lyon, NASA Goddard Space Flight Ctr. (United States)
Jan M. Hollis, NASA Goddard Space Flight Ctr. (United States)
John E. Dorband, NASA Goddard Space Flight Ctr. (United States)

Published in SPIE Proceedings Vol. 4860:
High-Contrast Imaging for Exo-Planet Detection
Alfred B. Schultz; Richard G. Lyon, Editor(s)

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