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The prototype design of more powerful Exoplanet Tracker based on LAMOST
Kai Zhang; Yongtian Zhu; Lei Wang
Source PublicationGround-based and Airborne Instrumentation for Astronomy III
PagesVol.7735 10-1-8
Conference Date2010-6-27
Conference PlaceSan Diego, California, USA
Funding OrganizationThe International Society for Optical Engineering
Chinese national science project-LAMOST successfully received its official blessing in June, 2009. Its aperture is about 4m, and its focal plane of 1.75m in diameter, corresponding to a 5° field of view, can accommodate as many as 4000 optical fibers, and feed 16 multi-object low-medium resolution spectrometers (LRS). In addition, a new technique called External Dispersed Interferometry (EDI) is successfully used to enhance the accuracy of radial velocity measurement by heterodyning an interference spectrum with absorption lines. For further enhancing the survey power of LAMOST, a major astronomical project, Multi-object Exoplanet Survey System (MESS) based on this advanced technique, is being developed by Nanjing Institute of Astronomical Optics and Technology (NIAOT) and National Astronomical Observatories of China (NAOC), and funded by Joint Fund of Astronomy, which is set up by National Natural Sciences Foundation of China (NSFC) and Chinese Academy of Sciences (CAS). This system is composed of a multi-object fixed delay Michelson interferometer (FDMI) and a multi-object medium resolution spectrometer (R=5000). In this paper, a prototype design of FDMI is given, including optical system and mechanical structure.
KeywordExternal Dispersed Interferometer Fixed Delay Michelson Interferometer Optical System Mechanical Structure
Subject Area郭守敬望远镜(lamost) ; 系外行星探测
Document Type会议论文
Recommended Citation
GB/T 7714
Kai Zhang,Yongtian Zhu,Lei Wang. The prototype design of more powerful Exoplanet Tracker based on LAMOST[C]:SPIE,2010:Vol.7735 10-1-8.
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