Abstract

The parameter characterizing nonisoplanatic effects in speckle interferometry can be measured by observing double stars. An experimental method is developed which permits estimation of this parameter in the presence of inherently large photon and detector noises as well as unequal double-star component brightnesses. Data are presented on five double stars ranging from 0.22 to 3.48 arc sec in separation. The results are compared to theory and the implications to both speckle interferometry and compensated imaging are discussed.

© 1978 Optical Society of America

Measurements of atmospheric isoplanatism using speckle interferometry*

P. Nisenson and R. V. Stachnik
J. Opt. Soc. Am. 68(2) 169-175 (1978)

Measurement of r₀ with speckle interferometry

Arthur M. Schneiderman and Douglas P. Karo
J. Opt. Soc. Am. 68(3) 348-351 (1978)

Changes in the atmospheric-lens modulation transfer function used for calibration in solar speckle interferometry

C. Aime, G. Ricort, C. Roddier, and G. Lago
J. Opt. Soc. Am. 68(8) 1063-1066 (1978)

Speckle interferometry at finite spectral bandwidths and exposure times

Douglas P. Karo and Arthur M. Schneiderman
J. Opt. Soc. Am. 68(4) 480-485 (1978)

A method for processing stellar speckle interferometry data

Gary L. Welter and Simon P. Worden
J. Opt. Soc. Am. 68(9) 1271-1275 (1978)