Ground-layer turbulence evaluation project at Subaru Telescope

Adapting to the Atmosphere Conference 2014

物理学;地球科学

Oya, Shin^1

Subaru Telescope, NAOJ, 650 North A'ohoku Place, Hilo

HI

96720, United States^1

关键词: Adaptive optics systems;    Adaptive secondary mirrors;    Ground layer;    Profile data;    Subaru telescopes;    Turbulence profile;    Turbulence properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/595/1/012024/pdf
DOI  :  10.1088/1742-6596/595/1/012024

来源: IOP

【 摘 要 】

A candidate of the next-generation adaptive optics (AO) system at Subaru Telescope is a ground-layer AO (GLAO) using an adaptive secondary mirror. The performance of GLAO depends on the turbulence profile because only ground-layer turbulence is corrected. At Mouna Kea, the profile data have been obtained at the summit ridge site and TMT site. However, the height difference of the Subaru site from these sites is about 100 m, close to the scale height of the ground-layer turbulence. There is a possibility that the topographical difference affects the ground-layer turbulence property, and then the performance of GLAO. In this paper, the activity to evaluate the ground-layer turbulence at the Subaru site is introduced.