Exoplanet High Resolution Spectrograph

这个项目是为了实现所谓的EXOhSPEC原型光谱仪(ExoPlanet高分辨率光谱仪)。它将完全由星表组件建造，但将使用天文光谱仪中未部署的技术。EXOhSPEC将在实验室、当地自动望远镜以及金丝雀和泰国的望远镜上进行太阳和当地恒星的测试。一个版本将交付给泰国国家望远镜。它的设计目的是为高分辨率光谱仪提供尽可能少的光学表面，其效率和体积小将使其具有极大的吸引力，便于进一步开发。在我们介绍的几个新发展中，有源计量学使我们能够用现成的部件构建一个小型无热光谱仪。该项目的长期目标是能够建造一个原型，将精确的径向速度的范围大大扩展到更高的精度和效率，从而能够例如建立一个天基径向速度仪器。已经有一篇描述该项目早期成果和规划未来步骤的论文(Jones等人，2021年)以及能够通过一些设计进行迭代的软件。

This project is to realise the so-called EXOhSPEC prototype spectrograph (Exoplanet high resolution spectrograph). It will be entirely built from catalogue components but will utilise technologies not deployed in astronomical spectrographs. EXOhSPEC will be tested on the Sun and local stars both in the laboratory, on local automated telescope as well as with telescopes in the Canaries and Thailand. A version is destined for delivery to the Thai National Telescope. It is intended to have the fewest possible optical surfaces for a high resolution spectrograph and its efficiency and small size will make it a highly attractive for further development. Among several novel developments that we introduce is active metrology which enables us to construct a small athermal spectrograph from off-the-shelf parts. The long-term aim of the project is to be able to build a prototype to significantly extend the reach of precision radial velocities to higher precisions and efficiencies enabling for example a space-based radial velocity instrument. A paper describing early results and laying out future steps for the project is available (Jones et al., 2021) along with software to enable iteration through a number of designs.