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Proceedings Paper

Aspects of error budgeting for coronagraphic differential imaging: effects of dust and cosmetic errors
Author(s): Kjetil Dohlen
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Paper Abstract

The SPHERE (Spectro-Polarimetric High-contrast Exoplanet Research) planet finder instrument for ESO's VLT telescope, scheduled for first light in 2011, aims to detect giant extra-solar planets in the vicinity of bright stars by the aid of an extreme-AO turbulence compensation system and coronagraphic diffraction suppression. Objects found will be characterized through spectroscopic and polarimetric observations. I consider here the effects of micro-obstructions of the beam due to dust and cosmetic defects on the SPHERE image quality.

Paper Details

Date Published: 7 July 2008
PDF: 9 pages
Proc. SPIE 7017, Modeling, Systems Engineering, and Project Management for Astronomy III, 70171V (7 July 2008); doi: 10.1117/12.789935
Show Author Affiliations
Kjetil Dohlen, Lab. d’Astrophysique de Marseille, CNRS, Univ. de Provence (France)


Published in SPIE Proceedings Vol. 7017:
Modeling, Systems Engineering, and Project Management for Astronomy III
George Z. Angeli; Martin J. Cullum, Editor(s)

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