Performance of the SOAR adaptive module with UV Rayleigh guide star

Andrei Tokovinin; Roberto Tighe; Patricio Schurter; Rolando Cantarutti; Nicole van der Bliek; Manuel Martinez; Eduardo Mondaca; Steven Heathcote

doi:10.1117/12.925705

13 September 2012 Performance of the SOAR adaptive module with UV Rayleigh guide star

Andrei Tokovinin, Roberto Tighe, Patricio Schurter, Rolando Cantarutti, Nicole van der Bliek, Manuel Martinez, Eduardo Mondaca, Steven Heathcote

Author Affiliations +

Proceedings Volume 8447, Adaptive Optics Systems III; 84474H (2012) https://doi.org/10.1117/12.925705
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

Abstract

The adaptive module of the 4-m SOAR telescope (SAM) has been tested on the sky by closing the loop on natural stars. Then it was re-configured for operation with low-altitude Rayleigh laser guide star in early 2011. We describe the performance of the SAM LGS system and various improvements made during one year of on-sky tests. With acceptably small LGS spots of 1.6′′ the AO loop is robust and achieves a resolution gain of almost two times in the I band, under suitable conditions. The best FWHM resolution so far is 0.25′′ over the 3′ field of the CCD imager.

Citation Download Citation

Andrei Tokovinin, Roberto Tighe, Patricio Schurter, Rolando Cantarutti, Nicole van der Bliek, Manuel Martinez, Eduardo Mondaca, and Steven Heathcote "Performance of the SOAR adaptive module with UV Rayleigh guide star", Proc. SPIE 8447, Adaptive Optics Systems III, 84474H (13 September 2012); https://doi.org/10.1117/12.925705

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