Contrast Enhancement of Binary Star System Using an Optical Vortex Coronagraph

Using an optical vortex coronagraph and simple adaptive optics techniques we have made the first convincing demonstration of an optical vortex coronagraph that is coupled to a star gazing telescope. In particular we suppressed by 97% the primary star of a barely resolvable binary system, Cor Caroli,...

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Bibliographic Details
Published in:arXiv.org 2008-05
Main Authors: Swartzlander, Grover A, Jr, d, Erin L, Abdul-Malik, Rukiah S, Close, Laird M, Peters, Mary Anne, Palacios, David M, Wilson, Daniel W
Format: Article
Language:English
Subjects:
Adaptive optics
Binary stars
Coronagraphs
Vortices
Online Access:Get full text
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Summary:Using an optical vortex coronagraph and simple adaptive optics techniques we have made the first convincing demonstration of an optical vortex coronagraph that is coupled to a star gazing telescope. In particular we suppressed by 97% the primary star of a barely resolvable binary system, Cor Caroli, having an effective angular separation of only 1.4 lambda/D. The secondary star suffered no suppression.
ISSN:2331-8422