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A prototype for piston sensing by the dispersed specklemethod

Published online by Cambridge University Press:  11 October 2004

C. Aime ,
R. Soummer ,
V. Borkowski  and
A. Labeyrie
V. Borkowski
Affiliation:
LISE - Collège de France, Observatoire de Haute Provence, 04870 St Michel l'Observatoire, France;
A. Labeyrie
Affiliation:
LISE - Collège de France, Observatoire de Haute Provence, 04870 St Michel l'Observatoire, France;
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Abstract

We describe a prototype instrument built to validate the principle of the dispersed speckle method (Borkowski et al. 2002; Borkowski et al. 2004). This prototype, still under test, is a spectrograph where the multiple pupil, highly reduced in size, replaces the slit. An array of optical wedges is added near the grating to separate the spectra from each speckle. The fabrication and properties will be explained.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 12: Astronomy with High Contrast Imaging II , 2004 , pp. 287 - 291
Copyright
© EAS, EDP Sciences, 2004

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