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Coronagraphy vs. Nulling

Published online by Cambridge University Press:  11 October 2004

C. Aime ,
R. Soummer  and
O. Guyon
O. Guyon*
Affiliation:
Subaru Telescope, 650 N.A'ohoku Pl., Hilo, HI 96720, USA
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Abstract

Nulling cancels out the light of a source by destructive interference between several beams, while coronagraphy is a much larger family of high dynamical range imaging techniques designed for single pupil telescopes. In this paper, nulling techniques and three different classes of coronagraphs are compared using criteria relevant to the detection of Earth-sized planets around nearby stars.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 12: Astronomy with High Contrast Imaging II , 2004 , pp. 263 - 271
Copyright
© EAS, EDP Sciences, 2004

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