| DOI | Trouver le DOI : https://doi.org/10.1117/12.893728 |
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| Auteur | Rechercher : Thomas, Sandrine J.; Rechercher : Poyneer, Lisa; Rechercher : De Rosa, Rob; Rechercher : Macintosh, Bruce; Rechercher : Dillon, Daren; Rechercher : Wallace, James K.; Rechercher : Palmer, David; Rechercher : Gavel, Donald; Rechercher : Bauman, Brian; Rechercher : Saddlemyer, Leslie1; Rechercher : Goodsell, Stephen |
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| Affiliation | - Conseil national de recherches du Canada. Institut Herzberg d'astrophysique du CNRC
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| Format | Texte, Article |
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| Conférence | Astronomical Adaptive Optics Systems and Applications IV, August 21-24, 2011, San Diego, CA, USA |
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| Sujet | Calibration system; California; Contrast imaging; Contrast ratio; Exoplanet; Extra solar planets; High contrast imaging; High-accuracy; Integral field spectrograph; Lyot coronagraphs; MEMS deformable mirror; Near Infrared; Subaperture; wavefront correction; Wavefront measurement; Adaptive optics; Integration; Planets; Spheres; Wavefronts; Earth (planet) |
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| Résumé | 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. © 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE). |
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| Date de publication | 2011-09-16 |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 21271971 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 208312d4-fe2e-44b5-b1d5-04d355d1e18b |
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| Enregistrement créé | 2014-05-14 |
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| Enregistrement modifié | 2020-04-21 |
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