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Title:
Progress on Multi-object Exoplanet Search Spectral Interferometer
Author: Zhang, Kai(张凯) ; Zhu, YongTian(朱永田) ; Wang, Lei(王磊) ; Le, ZhongYu(乐中宇) ; Chen, Yi(陈忆) ; Tang, Jin(汤瑾) ; Hu, ZhongWen(胡中文)
Issued Date: 2012-09-24
Conference Date: 2012-7-1
Conference Place: Amsterdam, Netherlands
Keyword: Exoplanet detection ; External dispersed interferometry ; Fixed-delay Michelson interferometer ; Multi-fiber plugs ; Iodine cell
Subject: 天文技术与方法::系外行星探测
English Abstract:
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.
Sponsorship: The International Society for Optical Engineering
Source: Ground-based and Airborne Instrumentation for Astronomy IV
Publisher: SPIE
Content Type: 会议论文
URI: http://ir.niaot.ac.cn/handle/114a32/673
Appears in Collections:中科院南京天光所知识成果_会议论文
天文光谱和高分辨成像技术研究室_会议论文

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Recommended Citation:
Kai Zhang,Yongtian Zhu,Lei Wang,et al. Progress on Multi-object Exoplanet Search Spectral Interferometer[C]. 见:. Amsterdam, Netherlands. 2012-7-1.
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