Physics – Optics
Scientific paper
Apr 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007crphy...8..355s&link_type=abstract
Comptes Rendus - Physique, Volume 8, Issue 3-4, p. 355-364.
Physics
Optics
5
Instrumentation, Adaptive Optics, Coronagraphy, Planet Detection, Simultaneous Polarization, Astrometry, Photometry, Instrumentation, Optique Adaptative, Coronographie, Detection D'Exoplanètes, Polarimétrie Différentielle, Astrometrie, Photométrie
Scientific paper
We present a retrospective on, and some new imaging data from The Lyot Project JHK coronagraph which is used behind the 3.6 m AEOS 941-channel AO telescope on Mt. Haleakala, on the island of Maui in Hawaii. This instrument is the first ‘extreme adaptive optics’ (ExAO) coronagraph ever; it opens up new scientific search spaces in direct imaging of faint companions of nearby stars. It also blazed a trail for current ExAO systems being developed for ESO-VLT and Gemini telescopes. Amongst other things, the Lyot Project has been used to demonstrate a device for precision coronagraphic astrometry and photometry using the novel technique of placing a wire grid over the pupil to create stable fiducial ghost images, to show the effects of frozen actuators on a deformable mirror, to refine angular differential imaging for use on the Coudé focus of Alt-Az telescopes, and to develop a coronagraphic data reduction pipeline. To cite this article: A. Sivaramakrishnan et al., C. R. Physique 8 (2007).
Brenner Douglas
Graham James R.
Hinkley Sasha
Kuhn Jeffrey R.
Lloyd James P.
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