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Progress on Multi-object Exoplanet Search Spectral Interferometer
Kai Zhang; Yongtian Zhu; Lei Wang; Zhongyu Yue; Yi Chen; Jin Tang; Zhongwen Hu
2012-09-24
会议录名称Ground-based and Airborne Instrumentation for Astronomy IV
卷号8446
期号8446
页码Vol.8446 82-1-6
会议日期2012-7-1
会议地点Amsterdam, Netherlands
会议主办者The International Society for Optical Engineering
出版者SPIE
摘要
It’s a very important point that fully open up power of Gou Shoujing telescope (LAMOST) in exoplanet detection field by developing a multi-exoplanet survey system. But it’s an indisputable truth in the present astronomy that a traditional type of multi-object high resolution spectrograph is almost impossible to be developed. External Dispersed Interferometry is an effective way to improve the radial velocity measuring accuracy of medium resolution spectrograph. With the using of this technique, Multi-object Exoplanet Search Spectral Interferometer (MESSI) is an exploratory system with medium measuring accuracy based on LAMOST low resolution spectrograph works in medium-resolution mode (R=5,000 - 10,000). And it’s believed that will bring some feasible way in the future development of multi-object medium/high resolution spectrograph.After prototype experiment in 2010, a complete configuration is under the development, including a multi-object fixed-delay Michelson interferometer, an iodine cell with multi-fiber optical coupling system and a multi-terminal switching system in an efficient fiber physical coupling way. By some effective improvement, the interferometer has smaller cross section and more stable interference component. Moreover, based on physical and optical fiber coupling technique, it’s possible for the iodine cell and the switching system to simultaneously and identically coupling 25 pairs of fibers. In paper, all of the progress is given in detail.
关键词Exoplanet Detection External Dispersed Interferometry Fixed-delay Michelson Interferometer Multi-fiber Plugs Iodine Cell
学科领域系外行星探测
文献类型会议论文
条目标识符http://ir.niaot.ac.cn/handle/114a32/673
专题会议论文
推荐引用方式
GB/T 7714
Kai Zhang,Yongtian Zhu,Lei Wang,et al. Progress on Multi-object Exoplanet Search Spectral Interferometer[C]:SPIE,2012:Vol.8446 82-1-6.
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