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Characterizing Exoplanet Motions Using Random Orbit Generation for the Gemini Planet Imager Exoplanet Survey

Authors
  • Sarah Caroline, Blunt
  • Eric Nielsen
  • Franck Marchis
  • Robert, De Rosa
  • Quinn, Konopacky
  • Bruce, Macintosh
  • Jason, Wang
  • Christian, Marois
  • Laurent, Pueyo
  • Julien, Rameau
  • James R, Graham
  • Gpies, Collaboration
Volume
227
Source
SETI Institute
License
Unknown

Abstract

Next generation planet-finders like the Gemini Planet Imager (GPI) allow for direct imaging of exoplanets that are close enough to their host stars to undergo detectable orbital motion on monthly timescales, creating a need for methods that rapidly characterize newly discovered planets using short astrometric baselines. We present a computationally efficient Monte Carlo method that fits randomly generated orbital parameters to astrometry of directly imaged exoplanets from a fraction of an orbit. This code quickly and efficiently produces ...

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