Speckle interferometric techniques applied to the study of the solar granulation

Details Speckle interferometric techniques applied to the study of the solar granulation Speckle interferometric techniques applied to the study of the solar granulation

Dec 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979jopt...10..318a&link_type=abstract

Journal of Optics, vol. 10, Nov.-Dec. 1979, p. 318, 319. In French.

Physics

Optics

1

Interferometry, Solar Granulation, Speckle Patterns, Atmospheric Turbulence, Calibrating

Scientific paper

Speckle interferometric techniques are used to study the solar photospheric granulation. The calibration of the effects of the atmospheric turbulence is performed by using the difference in behaviour between redundant and non redundant apertures with atmospheric turbulence, as well as by using the changes in seeing conditions during speckle-interferometric measurements. The results obtained using several kinds of apertures provides satisfactory convergence for frequencies up to 3 cycles per arc second.

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