A Study on the Paul-Baker System as an Instrument for Multi-object Spectrum Observation

• 作 者: Xiang-Yan Yuan Ding-Qiang Su X
• 机 构: NationalAstronomicalObservatories,DepartmentofAstronomy
• 出 处: 中国天文和天体物理学报：英文版
• 发表日期: 2005年5期
• 关键词: 望远镜 视角 光谱分析 星系物理 techniques： telescopes - instrumentation： miscellaneous
• 基金项目: Acknowledgements The authors would like to thank Professor Ya-Nan Wang for her earnest help in preparing this paper.

Paul-Baker systems with 4° fiat field and 5° flat field are studied. Their light obstructions under different f/ratios of the primary mirror are analyzed. Due to the strong f/ratio of the system, a focal length extender is designed in order to m