Gemini north adaptive optics (GNAO): An MCAO system for Gemini North towards conceptual design

Gaetano Sivo, David Palmer, Julia Scharwächter, Morten Andersen, Natalie Provost, Eduardo Marin, Marcos Van Dam, Brian Chinn, Emmanuel Chirre, Charles Cavedoni, Thomas Schneider, Stacy Kang, Paul Hirst, William Rambold, Angelic Ebbers, Pedro Gigoux, Laure Catala, Thomas Hayward, John Blakeslee, Henry RoeJennifer Lotz, Scot Kleinman, Manuel Lazo, Celia Blain, Suresh Sivanandam, Anja Feldmeier-Krause, Mark Ammons, Chadwick Trujillo, Chris Packham, Franck Marchis, Julian Christou, James Jee, John Bally, Mike Pierce, Thomas Puzia, Paolo Turri, Hwihyun Kim, Meg Schwamb, Trent Dupuy, Ruben Diaz, Rodrigo Carrasco, Benoit Neichel, Carlos Correia, Eric Steinbring, François Rigaut, Jean Pierre Véran, Mark Chun, Masen Lamb, Scott Chapman, Simone Esposito, Thierry Fusco

Research output: Contribution to conferencePaperpeer-review

3 Citations (Scopus)

Abstract

Gemini Observatory has been awarded from the National Science Foundation a major fund to build a new state-of-the-art Multi Conjugate Adaptive Optics facility for Gemini North on Maunakea called GNAO. The current baseline system will use two lasers each split in two to create an artificial constellation of four laser guide star to measure the distortions caused by the atmosphere. At least two deformable mirror conjugated to 0km and the main altitude layer above Maunakea will be used to correct these distortions. The facility will be designed to feed future instrumentation, initially a near infrared imager and potentially a visiting 4-arm multi object adaptive optics IFU spectrograph.1 In this paper I will present the main characteristics of this exciting facility, its promises and its challenges. I will also present its conceptual design and results of trade studies conducted within the team and the Gemini Adaptive Optics Working Group. The expected first light is for October 2024.

Original languageEnglish
Publication statusPublished - 2019
Event6th International Conference on Adaptive Optics for Extremely Large Telescopes, AO4ELT 2019 - Quebec City, Canada
Duration: 2019 Jun 92019 Jun 14

Conference

Conference6th International Conference on Adaptive Optics for Extremely Large Telescopes, AO4ELT 2019
Country/TerritoryCanada
CityQuebec City
Period19/6/919/6/14

Bibliographical note

Publisher Copyright:
© 2019 AO4ELT 2019 - Proceedings 6th Adaptive Optics for Extremely Large Telescopes. All rights reserved.

All Science Journal Classification (ASJC) codes

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

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