Limits on Lyot coronagraphy with AEOS adaptive optics telescope

Details Limits on Lyot coronagraphy with AEOS adaptive optics telescope Limits on Lyot coronagraphy with AEOS adaptive optics telescope

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...198.7705s&link_type=abstract

American Astronomical Society, 198th AAS Meeting, #77.05; Bulletin of the American Astronomical Society, Vol. 33, p.902

Physics

Optics

Scientific paper

The 3.6m Air Force Electo-Optical System telescope is the most advanced adaptive optics (AO) system available to the astronomical community. Its 941-channel AO system feeds several stable instrument platforms at a very slow Cassegrain focus. Its small secondary obscuration makes it ideal for AO coronagraphy. We present estimates of current and theoretical limits on dynamic range using a diffraction-limited Lyot coronagraph optimized for the 3.6m AEOS telescope. We incorporate both the effects of imperfect AO correction of the wavefront and telescope guiding errors in our simulations. We calculate limits on faint companion detection (in the H-band) for this system at separations between 0.36 and 1.3 arcseconds.

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