Yazar "Yeşilyaprak, Cahit" için listeleme
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TROIA adaptive optics system for DAG Telescope
Keskin, Onur; Jolissaint, Laurent; Bouxin, Audrey; Yeşilyaprak, Cahit (SPIE, 2020-12-13)This paper presents the specifications of TROIA-TuRkish adaptive Optics system for Infrared Astronomy system, the science rationale for these specifications, and description of the site technical and environmental conditions ... -
TROIA Adaptive optics system for DAG telescope; assembly and laboratory performance prior to on-sky assessment
Keskin, Onur; Jolissaint, Laurent; Bouxin, Audrey; Yeşilyaprak, Cahit (SPIE, 2022-08-29)In this article, we describe the current status of the development of TROIA* a pyramid wavefront sensor based adaptive optics system designed for DAG, a new 4 m telescope located in Eastern Anatolia, Turkey. The wavefront ... -
Turkey's next big science project: DAG the 4 meter telescope
Keskin, Onur; Yeşilyaprak, Cahit; Yerli, Sinan Kaan; Zago, Lorenzo; Jolissaint, Laurent (SPIE-INT Soc Optical Engineering, 2014)The DAG (Turkish for Eastern Anatolia Observatory) 4-m telescope project has been formally launched in 2012, being fully funded by the Government of Turkey. This new observatory is to be located on a 3170 m altitude ridge ... -
Wind disturbance cancellation for smaller alt-azimuth telescopes
Ünal, Ali Cem; Kararsız, Gökhan; Yılmaz, Cem Tuğrul; Keskin, Onur; Yeşilyaprak, Cahit (Universidad Nacional Autonoma de Mexico, 2019-10)This study focuses on eliminating unknown amplitude wind disturbance for 2-DOF alt-azimuth configuration small telescopes. An adaptive controller is designed to overcome wind disturbance as a set and forget system. The ...