7 August 2014 The Gemini planet imager: first light and commissioning
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Abstract
The Gemini Planet Imager (GPI) is a facility extreme-AO high-contrast instrument – optimized solely for study of faint companions – on the Gemini telescope. It combines a high-order MEMS AO system (1493 active actuators), an apodized pupil Lyot coronagraph, a high-accuracy IR post-coronagraph wavefront sensor, and a near-infrared integral field spectrograph. GPI incorporates several other novel features such as ultra-high quality optics, a spatially-filtered wavefront sensor, and new calibration techniques. GPI had first light in November 2013. This paper presnets results of first-light and performance verification and optimization and shows early science results including extrasolar planet spectra and polarimetric detection of the HR4696A disk. GPI is now achieving contrasts approaching 10-6 at 0.5” in 30 minute exposures.
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Bruce A. Macintosh, Bruce A. Macintosh, Andre Anthony, Andre Anthony, Jenny Atwood, Jenny Atwood, Brian Bauman, Brian Bauman, Andrew Cardwell, Andrew Cardwell, Kris Caputa, Kris Caputa, Jeffery Chilcote, Jeffery Chilcote, Robert J. De Rosa, Robert J. De Rosa, Daren Dillon, Daren Dillon, René Doyon, René Doyon, Jennifer Dunn, Jennifer Dunn, Darren Erickson, Darren Erickson, Michael P. Fitzgerald, Michael P. Fitzgerald, Donald T. Gavel, Donald T. Gavel, Ramon Galvez, Ramon Galvez, Stephen Goodsell, Stephen Goodsell, James Graham, James Graham, Alexandra Z. Greenbaum, Alexandra Z. Greenbaum, Markus Hartung, Markus Hartung, Pascale Hibon, Pascale Hibon, Patrick Ingraham, Patrick Ingraham, Dan Kerley, Dan Kerley, Quinn Konopacky, Quinn Konopacky, Kathleen Labrie, Kathleen Labrie, James Larkin, James Larkin, Jerome Maire, Jerome Maire, Franck Marchis, Franck Marchis, Christian Marois, Christian Marois, Max Millar-Blanchaer, Max Millar-Blanchaer, Katie Morzinski, Katie Morzinski, Arturo Nunez, Arturo Nunez, Rebecca Oppenheimer, Rebecca Oppenheimer, David Palmer, David Palmer, John Pazder, John Pazder, Marshall Perrin, Marshall Perrin, Lisa A. Poyneer, Lisa A. Poyneer, Laurent Pueyo, Laurent Pueyo, Carlos Quiroz, Carlos Quiroz, Fredrik Rantakyro, Fredrik Rantakyro, Vlad Reshetov, Vlad Reshetov, Les Saddlemyer, Les Saddlemyer, Naru Sadakuni, Naru Sadakuni, Dmitry Savransky, Dmitry Savransky, Andrew Serio, Andrew Serio, Anand Sivaramakrishnan, Anand Sivaramakrishnan, Malcolm Smith, Malcolm Smith, Remi Soummer, Remi Soummer, Sandrine Thomas, Sandrine Thomas, J. Kent Wallace, J. Kent Wallace, Jason Wang, Jason Wang, Jason Weiss, Jason Weiss, Sloane Wiktorowicz, Sloane Wiktorowicz, Schuyler G. Wolff, Schuyler G. Wolff, } "The Gemini planet imager: first light and commissioning", Proc. SPIE 9148, Adaptive Optics Systems IV, 91480J (7 August 2014); doi: 10.1117/12.2056709; https://doi.org/10.1117/12.2056709
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