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Proceedings Paper

Performance of the near-infrared coronagraphic imager on Gemini-South
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Paper Abstract

We present the coronagraphic and adaptive optics performance of the Gemini-South Near-Infrared Coronagraphic Imager (NICI). NICI includes a dual-channel imager for simultaneous spectral difference imaging, a dedicated 85-element curvature adaptive optics system, and a built-in Lyot coronagraph. It is specifically designed to survey for and image large extra-solar gaseous planets on the Gemini Observatory 8-meter telescope in Chile. We present the on-sky performance of the individual subsystems along with the end-to-end contrast curve. These are compared to our model predictions for the adaptive optics system, the coronagraph, and the spectral difference imaging.

Paper Details

Date Published: 10 July 2008
PDF: 9 pages
Proc. SPIE 7015, Adaptive Optics Systems, 70151V (10 July 2008); doi: 10.1117/12.787683
Show Author Affiliations
Mark Chun, Institute of Astronomy, Univ. of Hawaii (United States)
Doug Toomey, Mauna Kea Infra-Red LLC (United States)
Zahed Wahhaj, Institute of Astronomy, Univ. of Hawaii (United States)
Beth Biller, Institute of Astronomy, Univ. of Hawaii (United States)
Etienne Artigau, Gemini Observatory (Chile)
Tom Hayward, Gemini Observatory (Chile)
Mike Liu, Institute of Astronomy, Univ. of Hawaii (United States)
Laird Close, Univ. of Arizona (United States)
Markus Hartung, Gemini Observatory (Chile)
Francois Rigaut, Gemini Observatory (Chile)
Christ Ftaclas, Institute of Astronomy, Univ. of Hawaii (United States)

Published in SPIE Proceedings Vol. 7015:
Adaptive Optics Systems
Norbert Hubin; Claire E. Max; Peter L. Wizinowich, Editor(s)

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