Preliminary on-sky results of the CANARY experiment with an ELT-elongated sodium LGS

Bardou, Lisa; Gendron, Eric; Rousset, Gérard; Gratadour, Damien; Basden, Alastair G.; Bonaccini, Domenico; Buey, Tristan; Centrone, Mauro; Chemla, Fanny; Lombardi, Gianluca; Marchetti, Enrico; Morris, Timothy J; Myers, Richard M.; Osborn, J.; Townson, Matthew J.; Vidal, Fabrice; Reyes Garcia-Talavera, Marcos

doi:10.26698/ao4elt5.0126

Preliminary on-sky results of the CANARY experiment with an ELT-elongated sodium LGS

Bardou, Lisa; Gendron, Eric; Rousset, Gérard; Gratadour, Damien; Basden, Alastair G.; Bonaccini, Domenico; Buey, Tristan; Centrone, Mauro; Chemla, Fanny; Lombardi, Gianluca; Marchetti, Enrico; Morris, Timothy J; Myers, Richard M.; Osborn, J.; Townson, Matthew J.; Vidal, Fabrice; Reyes Garcia-Talavera, Marcos

Authors

Lisa Bardou

Eric Gendron

Gérard Rousset

Damien Gratadour

Dr Alastair Basden a.g.basden@durham.ac.uk
Hpc Technical Manager

Domenico Bonaccini

Tristan Buey

Mauro Centrone

Fanny Chemla

Gianluca Lombardi

Enrico Marchetti

Professor Timothy Morris t.j.morris@durham.ac.uk
Professor

Richard M. Myers

Dr James Osborn james.osborn@durham.ac.uk
Associate Professor

Matthew Townson matthew.townson@durham.ac.uk
Academic Visitor

Fabrice Vidal

Marcos Reyes Garcia-Talavera

Abstract

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 using ESO’s transportable Wendelstein LGS unit placed 40 meters away from the WHT so as to replicate the elongations that will be seen on the European ELT. In this analysis, we evaluate the impact of spot truncation and sub-sampling on the wavefront measurements made with the elongated LGS.

Citation

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

Conference Name	Adaptive Optics for Extremely Large Telescopes 5
Conference Location	Tenerife, Canary Islands, Spain
Start Date	Jun 25, 2017
End Date	Jun 30, 2017
Publication Date	Jan 1, 2017
Deposit Date	May 1, 2018
Book Title	Proceedings of the Adaptive Optics for Extremely Large Telescopes 5 (AO4ELT5) : Tenerife, Canary Islands, Spain, June 25-30, 2017.
DOI	https://doi.org/10.26698/ao4elt5.0126