The SOPHIE spectrograph: design and technical key-points for high throughput and high stability
The SOPHIE spectrograph: design and technical key-points for high throughput and high stability
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SOPHIE光谱仪：高通量和高稳定性的设计和技术要点
DOI：
10.1117/12.787379
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
J. Brunel
中科院分区：
文献类型：
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作者：
S. Perruchot;D. Kohler;F. Bouchy;Y. Richaud;Pierre Richaud;G. Moreaux;M. Merzougui;R. Sottile;L. Hill;G. Knispel;X. Régal;J. Meunier;S. Ilovaisky;H. Coroller;D. Gillet;J. Schmitt;F. Pepe;M. Fleury;D. Sosnowska;P. Vors;D. Megevand;P. Blanc;C. carol;A. Point;A. Laloge;J. Brunel
SOPHIE是一个新的光纤馈入阶梯光栅摄谱仪，自2006年10月起在上普罗旺斯天文台的1.93米望远镜上运行。得益于HARPS（3.6-m ESO）获得的经验，SOPHIE被设计为获得精确的径向速度（几个月内约为3 m/s），其光吞吐量远远高于ESDIE（10倍）。这些增强的能力实际上已经实现，并证明在星震学和系外行星学中是非常宝贵的。本文介绍了一种双通施密特中阶梯光栅光谱仪的光学概念，它与一个高效耦合光纤系统相结合，并包括同时波长校准。通过将色散组分封装在恒压罐中，获得了投影光谱的稳定性。介绍了该仪器的主要特点。我们还提供了一些技术细节，用于达到这种高水平的性能。
SOPHIE is a new fiber-fed echelle spectrograph in operation since October 2006 at the 1.93-m telescope of Observatoire de Haute-Provence. Benefiting from experience acquired on HARPS (3.6-m ESO), SOPHIE was designed to obtain accurate radial velocities (~3 m/s over several months) with much higher optical throughput than ELODIE (by a factor of 10). These enhanced capabilities have actually been achieved and have proved invaluable in asteroseismology and exoplanetology. We present here the optical concept, a double-pass Schmidt echelle spectrograph associated with a high efficiency coupling fiber system, and including simultaneous wavelength calibration. Stability of the projected spectrum has been obtained by the encapsulation of the dispersive components in a constant pressure tank. The main characteristics of the instrument are described. We also give some technical details used in reaching this high level of performance.