Abstract
GeMS, the Gemini MCAO system, is undergoing commissioning. Using 5 laser guide stars and a central launch, GeMS is particularly sensitive to Rayleigh backscatter and the fratricide effect. Using data covering a 5 months period from January to May 2011, we present results on (i) the Sodium return and its variability from night to night, (ii) the spot elongation and (iii) the fratricide effect. A simple modeling of the fratricide is presented as well as possible strategies for mitigation.
Original language | English |
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Publication status | Published - 2011 |
Externally published | Yes |
Event | 2nd International Conference on Adaptive Optics for Extremely Large Telescopes, AO for ELT 2011 - Victoria, BC, Canada Duration: 25 Sept 2011 → 30 Sept 2011 |
Conference
Conference | 2nd International Conference on Adaptive Optics for Extremely Large Telescopes, AO for ELT 2011 |
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Country/Territory | Canada |
City | Victoria, BC |
Period | 25/09/11 → 30/09/11 |