Development of Fourth-order Nulling Coronagraphs for Partially Resolved Stars

Details Development of Fourth-order Nulling Coronagraphs for Partially Resolved Stars Development of Fourth-order Nulling Coronagraphs for Partially Resolved Stars

Aug 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1158..397m&link_type=abstract

EXOPLANETS AND DISKS: THEIR FORMATION AND DIVERSITY: Proceedings of the International Conference. AIP Conference Proceedings, V

Computer Science

Interferometry, Observatories And Site Testing, Substellar Companions, Planets

Scientific paper

We present our recent progress in development of two novel coronagraphs; an eightoctant phase-mask (8OPM) coronagraph and a tandem common-path achromatic interferocoronagraph (TCP-AIC). These methods have fourth-order responses to tip-tilt errors, and can realize deep stellar suppression for partially resolved stars. We report principles, numerical simulations and laboratory demonstrations of the proposed methods.

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