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Proceedings Paper

Searching for exo-zodiacal discs with a rotation shearing interferometer for NGST
Author(s): Richard Burg; Pierre Y. Bely; Larry Petro; Jean Gay; Yves Rabbia; Pierre Baudoz; David C. Redding; Charles M. Perrygo
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Paper Abstract

The detection of exo-Zodiacal discs is an important step in the NASA program for the detection of exo-solar planets, in particular, the detection of earth-like planets. We show that by incorporating a nulling interferometer NGST would be very well suited to study exo-zodiacal disks in nearby stars. Over 400 stars could be surveyed and at least 40 could be resolved such that structural parameters on the 2-3 AU scale could be measured. This can be done within the existing optical NGST design but demands a wavefront RMS error less than (lambda) /100 at 10 micron in order to assure a wavefront cancellation of 1000. In addition, a new concept for an off-axis NGST design is discussed.

Paper Details

Date Published: 28 August 1998
PDF: 6 pages
Proc. SPIE 3356, Space Telescopes and Instruments V, (28 August 1998); doi: 10.1117/12.324480
Show Author Affiliations
Richard Burg, Johns Hopkins Univ. (United States)
Pierre Y. Bely, Space Telescope Science Institute (United States)
Larry Petro, Space Telescope Science Institute (United States)
Jean Gay, Observatoire de la Cote d'Azur (France)
Yves Rabbia, Observatoire de la Cote d'Azur (France)
Pierre Baudoz, Observatoire de la Cote d'Azur (United States)
David C. Redding, Jet Propulsion Lab. (United States)
Charles M. Perrygo, Swales Aerospace (United States)


Published in SPIE Proceedings Vol. 3356:
Space Telescopes and Instruments V
Pierre Y. Bely; James B. Breckinridge, Editor(s)

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