Diffraction-limited imaging with the Coherently Cophased MMT

Details Diffraction-limited imaging with the Coherently Cophased MMT Diffraction-limited imaging with the Coherently Cophased MMT

Jan 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987spie..828...20h&link_type=abstract

IN: Digital image recovery and synthesis; Proceedings of the Meeting, San Diego, CA, Aug. 17, 18, 1987 (A88-51101 22-35). Bellin

Computer Science

Diffraction Limited Cameras, Optical Paths, Point Spread Functions, Reflecting Telescopes, Speckle Patterns, Arrays, Collimation, Fourier Transformation, Mirrors

Scientific paper

The University of Arizona's MMT has been operated as a coherently cophased interferometric imaging array; point-spread function observations at 410-850 nm have established the need for certain control criteria in order to achieve reliable imaging at resolutions of less than 0.015 arcsec. The MMT has been used to gather differential speckle images of Alpha Orionis and broadband images of a 12th-magnitude communications satellite in GEO. The cophasing capability of the MMT has been extended to IR wavelengths by furnishing a reflective path-length compensation capability.

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