Computer Science – Performance
Scientific paper
Aug 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1158..285g&link_type=abstract
EXOPLANETS AND DISKS: THEIR FORMATION AND DIVERSITY: Proceedings of the International Conference. AIP Conference Proceedings, V
Computer Science
Performance
1
Substellar Companions, Planets, Ground-Based Ultraviolet, Optical And Infrared Telescopes, Astrometric And Interferometric Instruments, Interferometry, Eclipses, Transits, And Occultations
Scientific paper
Coronagraphic techniques are required for direct high-contrast imaging of exoplanets and disks. Coronagraphy has recently become an extremely active field, with many high-performance concepts suggested and several new coronagraphs tested in laboratories and on telescopes. In this paper, I provide an overview of coronagraph techniques, and group coronagraphs into a few large families that are defined by an overall coronagraphic strategy (for example, apodization of the entrance pupil). The strengths and weaknesses of each approach are discussed. I also describe under which conditions coronagraphs are useful, and briefly mention related techniques which need to be used to properly exploit coronagraphic performance (wavefront control, calibration of starlight scattered in speckles).
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