Physics – Optics
Scientific paper
Jan 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979josa...69...84p&link_type=abstract
Optical Society of America, Journal, vol. 69, Jan. 1979, p. 84-89. Research supported by the U.S. Department of Energy, NSF, an
Physics
Optics
14
Binary Stars, Image Resolution, Optical Correction Procedure, Stellar Spectrophotometry, Telescopes, Turbulence Effects, Angular Resolution, Astronomical Photography, Atmospheric Optics, Atmospheric Turbulence, Companion Stars, High Resolution, Optical Transfer Function, Wave Diffraction
Scientific paper
In the presence of several-arc-second seeing at Mt. Wilson observatory, a flexible mirror image-sharpening telescope produced diffraction-limited (0.5 arcsec) images of the primary stars in the double star systems of Castor (alpha Gem), Algieba (gamma Leo) and Almach (gamma And). The images of both the primary and the companion star were simultaneously sharpened for Castor (separation 2 arcsec) and Algieba (4 arcsec) but not for Almach (10 arcsec). Thus the size of the isoplanatic patch came to lie between 4 and 10 arcsec. Using a simple model, we conclude that the bulk of the turbulent air responsible for the seeing was situated between 1.1 and 1.7 km above ground.
Buffington Andrew
Crawford Frank S.
Pollaine Steve
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