On-sky demonstration of matched filters for wavefront measurements using ELT-scale elongated laser guide stars (2017)
Journal Article
Basden, A., Bardou, L., Bonaccini-Calia, D., Buey, T., Centrone, M., Chemla, F., …Vidal, F. (2017). On-sky demonstration of matched filters for wavefront measurements using ELT-scale elongated laser guide stars. Monthly Notices of the Royal Astronomical Society, 466(4), 5003-5010. https://doi.org/10.1093/mnras/stx062

The performance of adaptive optics systems is partially dependent on the algorithms used within the real-time control system to compute wavefront slope measurements. We demonstrate the use of a matched filter algorithm for the processing of elongated... Read More about On-sky demonstration of matched filters for wavefront measurements using ELT-scale elongated laser guide stars.

Photometry and Spectrum measurements of the Laser Guide Star beam emission at Observatorio del Roque de Los Muchachos with the Gran Telescope Canarias (2017)
Conference Proceeding
Lombardi, G., Calia, B., Centrone, M., Talavera, M. R. G., Morris, T., Pfrommer, T., …Postigoh, A. D. U. (2017). Photometry and Spectrum measurements of the Laser Guide Star beam emission at Observatorio del Roque de Los Muchachos with the Gran Telescope Canarias. In Proceedings of the Adaptive Optics for Extremely Large Telescopes 5 (AO4ELT5) : Tenerife, Canary Islands, Spain, June 25-30, 2017 (1-7). https://doi.org/10.26698/ao4elt5.0045

In the past years ESO has built together with industry a transportable Laser Guide Star Unit (WLGSU) to test the laser technology while supporting some strategic experiments for the LGS-AO technologies. Since July 2016, the WLGSU has been installed a... Read More about Photometry and Spectrum measurements of the Laser Guide Star beam emission at Observatorio del Roque de Los Muchachos with the Gran Telescope Canarias.

Preliminary on-sky results of the CANARY experiment with an ELT-elongated sodium LGS (2017)
Conference Proceeding
Bardou, L., Gendron, E., Rousset, G., Gratadour, D., Basden, A. G., Bonaccini, D., …Reyes Garcia-Talavera, M. (2017). Preliminary on-sky results of the CANARY experiment with an ELT-elongated sodium LGS. In Proceedings of the Adaptive Optics for Extremely Large Telescopes 5 (AO4ELT5) : Tenerife, Canary Islands, Spain, June 25-30, 2017. https://doi.org/10.26698/ao4elt5.0126

We present on-sky results of wavefront sensing on an elongated LGS. These results are derived from observations made with the multi-object AO demonstrator CANARY on the William Herschel Telescope (WHT) in La Palma. The laser guide star is produced us... Read More about Preliminary on-sky results of the CANARY experiment with an ELT-elongated sodium LGS.