Author/Authors :
Hubin، نويسنده , , Norbert and Arsenault، نويسنده , , Robin and Conzelmann، نويسنده , , Ralf and Delabre، نويسنده , , Bernard and Le Louarn، نويسنده , , Miska and Stroebele، نويسنده , , Stefan and Stuik، نويسنده , , Remko، نويسنده ,
Abstract :
We will introduce the present knowledge of the turbulence profile C n 2 and in particular we will emphasise the existence of a turbulence layer close to the ground. Then we will present the concept of Ground Layer Adaptive Optics and will provide estimates of performance expected from such systems and their potential for astronomical applications. Finally we will provide practical implementation concepts for two instruments at the VLT, MUSE and HAWK-I using multi-Laser Guide Stars and a large Deformable Secondary Mirror. The latter will also be described as its use is optimum for GLAO systems. To cite this article: N. Hubin et al., C. R. Physique 6 (2005).
Keywords :
adaptive optics , Graal , Graal , Point spread function , Assist , Assist , Laser tomography , optique adaptative , Laser Guide Star , Ground Layer Adaptive Optics , Turbulence profile , Ensquared Energy , Deformable secondary mirror , GALACSI , GALACSI , MUSE , MUSE , HAWK-I , HAWK-I , Correction de la couche atmosphérique basse altitude , ةtoile artificielle laser , Tomographie laser , Profile de turbulence , ةnergie encerclée , Fonction dיEtalement de Point , Miroir secondaire déformable
