Long baseline spatial interferometer for the IR

Details Long baseline spatial interferometer for the IR Long baseline spatial interferometer for the IR

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986spie..628..281t&link_type=abstract

IN: Advanced technology optical telescopes III; Proceedings of the Meeting, Tucson, AZ, Mar. 3-6, 1986 (A87-35201 15-89). Bellin

Astronomy and Astrophysics

Astronomy

4

Infrared Interferometers, Reflecting Telescopes, Very Long Base Interferometry, Mirrors, Optical Paths

Scientific paper

The long baseline IR spatial interferometer discussed employs two 65-in aperture telescopes of Pfund type and emphasizes the control of optical pathlengths and telescope positions to a precision of about one micron. This allows the relative phase of interference fringes to be determined over comparatively large angles of the sky and periods of time, so that high precision astrometry as well as aperture synthesis can be conducted at wavelengths in the vicinity of 10 microns. The precision of the relative angular positions of two stars separated by large angles is limited only by atmospheric effects.

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