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Proceedings Paper

Coronagraphic capability for HARMONI at the E-ELT
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Paper Abstract

HARMONI is a proposed visible and near-infrared integral field spectrograph for the European Extremely Large Telescope. We are exploring the merits of adding a coronagraphic capability to HARMONI, specifically targeted at enabling observations of faint, nearby companions (primarily extra-solar planets) that require high contrast. Although HARMONI is not fed by extreme adaptive optics, we show that substantial contrasts can be achieved by post-processing of the hyperspectral data cube using spectral deconvolution. We make predictions of achievable contrast as a function of coronagraph design, based on realistic models of the telescope's aberrations.

Paper Details

Date Published: 20 July 2010
PDF: 11 pages
Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 773589 (20 July 2010); doi: 10.1117/12.857378
Show Author Affiliations
Szymon Gladysz, European Organisation for Astronomical Research in the Southern Hemisphere (Germany)
Niranjan A. Thatte, Univ. of Oxford (United Kingdom)
Fraser Clarke, Univ. of Oxford (United Kingdom)
Mathias Tecza, Univ. of Oxford (United Kingdom)
Graeme S. Salter, Univ. of Oxford (United Kingdom)

Published in SPIE Proceedings Vol. 7735:
Ground-based and Airborne Instrumentation for Astronomy III
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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