Volume 475, Number 2, November IV 2007
|Page(s)||771 - 774|
|Published online||17 September 2007|
Suppressing anisoplanatism effects in speckle interferometry
Institut für Theoretische Astrophysik, Universität Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany e-mail: email@example.com
2 Institut für Theoretische Astrophysik, Universität Tübingen, Hintere Grabenstr. 30, 72070 Tübingen, Germany
Accepted: 27 August 2007
Aims. The effect of anisoplanatism in speckle interferometry is studied with emphasis on the autocorrelation function and Knox-Thompson data.
Methods. We introduce a method for eliminating anisoplanatism artefacts by statistical analysis of Fourier amplitudes calculated from Knox-Thompson data.
Results. With this method, it is possible to suppress anisoplanatism artefacts nearly completely.
Key words: techniques: image processing / atmospheric effects / techniques: interferometric / methods: data analysis
© ESO, 2007
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