Active systems in long baseline interferometers

Details Active systems in long baseline interferometers Active systems in long baseline interferometers

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989spie.1114..220s&link_type=abstract

IN: Active telescope systems; Proceedings of the Meeting, Orlando, FL, Mar. 28-31, 1989 (A90-30852 12-74). Bellingham, WA, Socie

Astronomy and Astrophysics

Astronomy

Astrometry, Optical Tracking, Star Trackers, Very Long Base Interferometry, Apertures, Imaging Techniques, Optical Paths

Scientific paper

A fundamental limitation of ground-based interferometry is poor sensitivity; its enhancement has been undertaken by means of a triple-correlator for closure phase measurement which makes highly efficient use of the photons detected, and which incorporates provisions for accurate closure-phase calibration. Because a major limitation of pupil-plane combination is the very narrow field-of-view for imaging, the design of the triple correlator has had to be compatible with the use of a low-resolution dispersive spectrometer and imaging photon-counting detector.

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