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Proceedings Paper

Integration and test of the Gemini Planet Imager
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Paper Abstract

Exoplanet imaging is driving a race to higher contrast imaging, both from earth and from space. Next-generation instruments such as the Gemini Planet Imager (GPI) and SPHERE are designed to achieve contrast ratios of 10-6 - 10-7 this requires very good wavefront correction and coronagraphic control of diffraction. GPI is a facility instrument, now in integration and test, with first light on the 8-m Gemini South telescope expected by the middle of 2012. It combines a 1700 subaperture AO system using a MEMS deformable mirror, an apodized-pupil Lyot coronagraph, a high-accuracy IR interferometric wavefront calibration system, and a nearinfrared integral field spectrograph to allow detection and characterization of self-luminous extrasolar planets at planet/star contrast ratios of 10-7. In this paper we will discuss the status of the integration and test now taking place at the University of Santa Cruz California.

Paper Details

Date Published: 16 September 2011
PDF: 13 pages
Proc. SPIE 8149, Astronomical Adaptive Optics Systems and Applications IV, 814903 (16 September 2011); doi: 10.1117/12.893728
Show Author Affiliations
Sandrine J. Thomas, UCO, Lick Observatory (United States)
Lisa Poyneer, Lawrence Livermore National Lab. (United States)
Rob De Rosa, Univ. of Exeter (United Kingdom)
Bruce Macintosh, Lawrence Livermore National Lab. (United States)
Daren Dillon, UCO, Lick Observatory (United States)
James K. Wallace, Jet Propulsion Lab. (United States)
David Palmer, Lawrence Livermore National Lab. (United States)
Donald Gavel, UCO, Lick Observatory (United States)
Brian Bauman, Lawrence Livermore National Lab. (United States)
Leslie Saddlemyer, Herzberg Institute of Astrophysics, National Research Council Canada (Canada)
Stephen Goodsell, Gemini Observatory (United States)

Published in SPIE Proceedings Vol. 8149:
Astronomical Adaptive Optics Systems and Applications IV
Robert K. Tyson; Michael Hart, Editor(s)

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