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Proceedings Paper

Studying a simple TPF-C
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Paper Abstract

The NASA Terrestrial Planet Finder Coronagraph (TPF-C) mission envisions using a space telescope with an approximately 8 m by 3 m diameter primary mirror to image and spectroscopically characterize at visible wavelengths Earth-like planets orbiting nearby stars. Such terrestrial planets have intensities of 10-10 relative to their stars at separations of a fraction of an arcsecond, requiring extremely high-contrast imaging capabilities. A simple optical system with a minimal number of surfaces will likely have the best chance to image a very faint source near a bright star. A proposed version of a TPF-C integrated starlight suppression system and camera called SpeckleCam encompasses such a design. It incorporates two high-density deformable mirrors to control phase and amplitude wavefront errors, a coronagraph to suppress the stellar diffraction pattern, and simultaneous imaging in three passbands. We use the SpeckleCam concept to examine the utility of the PROPER modeling package, a set of IDL routines that simulate wavefront propagation in an optical system.

Paper Details

Date Published: 7 July 2006
PDF: 11 pages
Proc. SPIE 6265, Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter, 62653O (7 July 2006); doi: 10.1117/12.672386
Show Author Affiliations
John Krist, Jet Propulsion Lab. (United States)
John Trauger, Jet Propulsion Lab. (United States)
Dwight Moody, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 6265:
Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter
John C. Mather; Howard A. MacEwen; Mattheus W. M. de Graauw, Editor(s)

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