Fringes obtained with the large 'boules' interferometer at CERGA

Details Fringes obtained with the large 'boules' interferometer at CERGA Fringes obtained with the large 'boules' interferometer at CERGA

Jul 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...162..359l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 162, no. 1-2, July 1986, p. 359-364.

Astronomy and Astrophysics

Astrophysics

23

Diffraction Patterns, Interferometry, Telescopes, Charge Coupled Devices, Design Analysis, Faint Objects, France, Metrology, Synthetic Apertures

Scientific paper

Fringes in the visible have been observed with the GI2T interferometer, incorporating a pair of 1.5 meter telescopes with spherical mounts. The fringes were recorded on α Lyr (Vega) with a 13.8 m baseline, effective apertures of 42 cm and a spectral resolution of 5 Å. Short-term improvements and observational possibilities are discussed, as well as technical conclusions concerning the design of larger instruments, for which vibration and stability problems are more critical.

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