Comparison of space- and ground-based optical interferometry

Details Comparison of space- and ground-based optical interferometry Comparison of space- and ground-based optical interferometry

Jun 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995spie.2477...78g&link_type=abstract

Proc. SPIE Vol. 2477, p. 78-90, Spaceborne Interferometry II, Robert D. Reasenberg; Ed.

Computer Science

Scientific paper

At visible frequencies the comparative sensitivity achieved from space-borne or terrestrial interferometers depends on source brightness, source complexity and on the waveband considered. At short wavelengths a space-borne instrument is always superior and at longer `visible' wavelengths (up to K-Band) a space-borne instrument is superior for faint and/or complex targets. At thermal infrared wavelengths the sensitivity comparison depends on source brightness but not its complexity. A space-borne interferometer gives superior sensitivity at M-Band and between atmospheric transmission windows. To obtain adequate sensitivity at N-Band and longer wavelengths a space-borne interferometer cooled below 80 degree(s)K is required.

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