Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.344..227p&link_type=abstract
In ESA, Solar Physics and Astrophysics at Interferometric Resolution p 227-235 (SEE N93-10901 01-90)
Astronomy and Astrophysics
Astrophysics
Astrometry, Space Observations (From Earth), Speckle Interferometry, Very Long Base Interferometry, Apertures, Binary Stars, Solar Diameter, Stellar Envelopes, Technology Assessment
Scientific paper
The development of optical interferometric techniques over the past twenty years is outlined, and future objectives are discussed. These techniques, still ground based, spanning from speckle imaging to long baseline direct beam recombination and analysis, are producing more and more scientific results. New techniques, such as adaptive optics, are continuously developed to take benefit of technical progress in detectors, sensors, and real time control. Part of the most recent results is due to critical progress in the visibility calibration. The range of scientific applications is already wide with results in binary stars, circumstellar envelopes, stellar diameters, solar system bodies, some atypical sources, a few extragalactic objects, and wide angle astrometry. Additionally, a deep knowledge was acquired on the atmospheric turbulence laws. The use of interferometry in the study of binary stars, circumstellar envelopes and stellar diameters is discussed.
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