Advanced Astronomy - 14: Speckle Interferometry and Aperture ...
Advanced Astronomy - 14: Speckle Interferometry and Aperture ...
Advanced Astronomy - 14: Speckle Interferometry and Aperture ...
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<strong>Speckle</strong> Basics - In Practice<br />
ASTR278<br />
Mike Irel<strong>and</strong><br />
Recap<br />
Early Masking<br />
<strong>Speckle</strong><br />
<strong>Interferometry</strong><br />
<strong>Aperture</strong><br />
Masking<br />
Summary<br />
Record many frames rapidly.<br />
Take the power spectum of each frame <strong>and</strong> average.<br />
Divide the power spectrum of a target by the power<br />
spectrum of a point source.<br />
Fit a model (e.g. a binary star) to the true Fourier<br />
transform of the object.