24 September 2012 The Gemini Planet Imager: integration and status
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Abstract
The Gemini Planet Imager is a next-generation instrument for the direct detection and characterization of young warm exoplanets, designed to be an order of magnitude more sensitive than existing facilities. It combines a 1700-actuator adaptive optics system, an apodized-pupil Lyot coronagraph, a precision interferometric infrared wavefront sensor, and a integral field spectrograph. All hardware and software subsystems are now complete and undergoing integration and test at UC Santa Cruz. We will present test results on each subsystem and the results of end-to-end testing. In laboratory testing, GPI has achieved a raw contrast (without post-processing) of 10-6 5σ at 0.4”, and with multiwavelength speckle suppression, 2x10-7 at the same separation.
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Bruce A. Macintosh, Andre Anthony, Jennifer Atwood, Nicolas Barriga, Brian Bauman, Kris Caputa, Jeffery Chilcote, Daren Dillon, René Doyon, Jennifer Dunn, Donald T. Gavel, Ramon Galvez, Stephen J. Goodsell, James R. Graham, Markus Hartung, Joshua Isaacs, Dan Kerley, Quinn Konopacky, Kathleen Labrie, James E. Larkin, Jerome Maire, Christian Marois, Max Millar-Blanchaer, Arturo Nunez, Ben R. Oppenheimer, David W. Palmer, John Pazder, Marshall Perrin, Lisa A Poyneer, Carlos Quirez, Frederik Rantakyro, Vlad Reshtov, Leslie Saddlemyer, Naru Sadakuni, Dmitry Savransky, Anand Sivaramakrishnan, Malcolm Smith, Remi Soummer, Sandrine Thomas, J. Kent Wallace, Jason Weiss, Sloane Wiktorowicz, "The Gemini Planet Imager: integration and status", Proc. SPIE 8446, Ground-based and Airborne Instrumentation for Astronomy IV, 84461U (24 September 2012); doi: 10.1117/12.926721; http://dx.doi.org/10.1117/12.926721
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KEYWORDS
Gemini Planet Imager

Adaptive optics

Iterated function systems

Actuators

Sensors

Wavefronts

Microelectromechanical systems

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