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Proceedings Paper

Starshade scaling relations
Author(s): Tiffany Glassman; Amy S. Lo; Jonathan Arenberg; Webster Cash; Charley Noecker
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Paper Abstract

The New Worlds Observer enables high-contrast imaging by placing a space telescope in the dark shadow cast by an apodized starshade. Depending on the science requirements, we consider starshades that provide a wide range of contrast (from ~10-4 to more than 10-15) over an octave of wavelength (from UV to Visible) at a variety of inner working angles (from a few milliarcseconds to several arcseconds). The starshade-telescope system is described by many parameters, including starshade diameter, telescope diameter, starshade-telescope separation, and wavelength range, that interact non-linearly. In this paper, we show how the different parameters contribute to the starshade's performance and discuss the selection process for different science requirements.

Paper Details

Date Published: 19 August 2009
PDF: 10 pages
Proc. SPIE 7440, Techniques and Instrumentation for Detection of Exoplanets IV, 744013 (19 August 2009); doi: 10.1117/12.825033
Show Author Affiliations
Tiffany Glassman, Northrop Grumman Space Technology (United States)
Amy S. Lo, Northrop Grumman Space Technology (United States)
Jonathan Arenberg, Northrop Grumman Space Technology (United States)
Webster Cash, Univ. of Colorado at Boulder (United States)
Charley Noecker, Ball Aerospace & Technologies Corp. (United States)


Published in SPIE Proceedings Vol. 7440:
Techniques and Instrumentation for Detection of Exoplanets IV
Stuart B. Shaklan, Editor(s)

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