| DOI | Trouver le DOI : https://doi.org/10.1117/12.2056747 |
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| Auteur | Rechercher : Marois, Christian1; Rechercher : Bradley, Colin; Rechercher : Pazder, John1; Rechercher : Nash, Reston; Rechercher : Metchev, Stanimir; Rechercher : Grandmont, Frédéric; Rechercher : Maire, Anne-Lise; Rechercher : Belikov, Ruslan; Rechercher : Macintosh, Bruce; Rechercher : Currie, Thayne; Rechercher : Galicher, Raphaël; Rechercher : Marchis, Franck; Rechercher : Mawet, Dimitri; Rechercher : Serabyn, Eugene; Rechercher : Steinbring, Eric1 |
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| Affiliation | - Conseil national de recherches du Canada. Infrastructure scientifique nationale
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| Format | Texte, Article |
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| Conférence | Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave, June 22-27, 2014 |
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| Sujet | Adaptive optics; Astronomy; Extrasolar planets; Meteorological balloons; Millimeter waves; Space telescopes; Wavefronts; Coronagraph; Exo-planets; High contrast imaging; Planetary system; Space observatories; Wave front control; Balloons |
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| Résumé | Detecting light reflected from exoplanets by direct imaging is the next major milestone in the search for, and characterization of, an Earth twin. Due to the high-risk and cost associated with satellites and limitations imposed by the atmosphere for ground-based instruments, we propose a bottom-up approach to reach that ultimate goal with an endeavor named MAPLE. MAPLE first project is a stratospheric balloon experiment called MAPLE-50. MAPLE-50 consists of a 50 cm diameter off-axis telescope working in the near-UV. The advantages of the near-UV are a small inner working angle and an improved contrast for blue planets. Along with the sophisticated tracking system to mitigate balloon pointing errors, MAPLE-50 will have a deformable mirror, a vortex coronograph, and a self-coherent camera as a focal plane wavefront-sensor which employs an Electron Multiplying CCD (EMCCD) as the science detector. The EMCCD will allow photon counting at kHz rates, thereby closely tracking telescope and instrument-bench-induced aberrations as they evolve with time. In addition, the EMCCD will acquire the science data with almost no read noise penalty. To mitigate risk and lower costs, MAPLE-50 will at first have a single optical channel with a minimum of moving parts. The goal is to reach a few times 109 contrast in 25 h worth of flying time, allowing direct detection of Jovians around the nearest stars. Once the 50 cm infrastructure has been validated, the telescope diameter will then be increased to a 1.5 m diameter (MAPLE-150) to reach 1010 contrast and have the capability to image another Earth. |
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| Date de publication | 2014-08-28 |
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| Maison d’édition | SPIE |
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| Dans | |
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| Série | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 21275481 |
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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 | 02121eec-0c66-4a85-a2fc-6af621a73f5e |
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| Enregistrement créé | 2015-07-14 |
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| Enregistrement modifié | 2020-04-22 |
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