GeMS, the path toward AO facility

Vincent Garrel, Gaetano Sivo, Eduardo Marin, Chadwick Trujillo, Rodrigo Carrasco Damele, Benoit Neichel, Marcos Van Dam, Mark Ammons, Francois Rigaut, Ruben Diaz, Mischa Schirmer, German Gimeno, Pascale Hibon, Lucie Leboulleux, Vanessa Montes, Manuel Lazo, William Rambold, Pedro Gigoux, Ramon Galvez, Cristian MorenoConstanza Araujo-Hauck, Tomislav Vucina Parga, Jeff Donahue, Gaston Gausachs, Ariel Lopez

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations


GeMS, the Gemini South MCAO System, has now been in regular operation since mid-2013 with the imager instrument GSAOI. We review the performance obtained during this past year as well as some of its current limitations. While in operation, GeMS is still evolving to push them back and is currently in the path of receiving two major upgrades which will allow new exciting science cases: a new natural guide star wavefront sensor called NGS2 and a replacement of the current 50W laser. We are also actively moving along the path of further deeper integration with the future AO-fed instruments, we present our first preliminary results of astrometric and spectrometric calibrations with diverse Gemini instruments using an internal calibration source. We finally report our efforts to make GeMS a more robust instrument with the integration of a vibration rejection feature and a more user-friendly AO system as well with advanced gain optimization automatization.

Original languageEnglish (US)
StatePublished - 2015
Externally publishedYes
Event4th Adaptive Optics for Extremely Large Telescopes, AO4ELT 2015 - Lake Arrowhead, United States
Duration: Oct 26 2015Oct 30 2015


Conference4th Adaptive Optics for Extremely Large Telescopes, AO4ELT 2015
Country/TerritoryUnited States
CityLake Arrowhead


  • Laser
  • MCAO instrument
  • Pathfinder
  • Wavefront sensors

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Instrumentation
  • Electronic, Optical and Magnetic Materials
  • Space and Planetary Science
  • Astronomy and Astrophysics
  • Mechanical Engineering


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