Computer Science
Scientific paper
Feb 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003spie.4860..324g&link_type=abstract
High-Contrast Imaging for Exo-Planet Detection. Edited by Alfred B. Schultz. Proceedings of the SPIE, Volume 4860, pp. 324-333
Computer Science
Scientific paper
A concept is presented for a 10-meter sparse aperture hypertelescoep to detect extrasolar planets by direct imaging from the ground through the turbulent atmosphere. The telescope achieves high dynamic range with good image quality very close to bright stellar sources using pupil densification techniques and real-time atmospheric correction. Active correction of the perturbed wavefront is greatly simplified by several unique design features of the telescope: 1) use of an array of 19 small subaperture flat mirrors, 2) mounting the flats on a steerable parabolic truss structure, 3) operating in the near-IR, and 4) making the subaperture flats comparable in size to the seeing cells. These features relax the requirements on the wavefront sensing and control system. This paper describes the general concept. The details of design and implementation will be addresed separately.
Gezari Daniel Ysa
Labeyrie Antoine
Lyon Richard G.
Woodruff Robert A.
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