Abstract

ORLOV, V. G.  and  VOITSEKHOVICH, V. V.. Analysis of chromatic effects in the shift-and-add method. Rev. mex. astron. astrofis [online]. 2008, vol.44, n.2, pp.325-329. ISSN 0185-1101.

Chromatic effects in shift-and-add (SAA) adaptive systems are considered by means of computer simulations. Chromatic effects under investigations arise when measurements and corrections are performed in different wavelengths. A study of chromatic properties of SAA technique is useful for designing of SAA adaptive systems. Also it is important for data reduction of speckle-spectroscopic observations. The comparison of two approaches of low order adaptive corrections (SAA and tip-tilt) is presented. The advantages of SAA adaptive systems are outlined.

Keywords : instrumentation: adaptive optics; techniques: high angular resolution; techniques: interferometric; techniques: speckle.

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