MAROON-X is a red-optical, high precision radial velocity spectrograph currently nearing completion and undergoing extensive performance testing at the University of Chicago. The instrument is scheduled to be installed at Gemini North in the first quarter of 2019. MAROON-X will be the only RV spectrograph on a large telescope with full access by the entire US community. In these proceedings we discuss the latest addition of the red wavelength arm and the two science grade detector systems, as well as the design and construction of the telescope front end. We also present results from ongoing RV stability tests in the lab. First results indicate that MAROON-X can be calibrated at the sub-m/s level, and perhaps even much better than that using a simultaneous reference approach.
翻译：MAROON-X是一个红光学高精密辐射速度光谱仪,目前正在芝加哥大学完成并进行广泛的性能测试,仪器定于2019年第一季度在Gemini North安装。MARON-X将是全美国社区都能完全进入的大型望远镜上唯一的RV光谱仪。在这些程序中,我们讨论的是红波波臂和两个科学级探测器系统的最新添加情况,以及望远镜前端的设计和建造情况。我们还介绍了实验室正在进行的RV稳定性测试的结果。初步结果显示,MAROON-X可以在次米/秒一级进行校准,也许甚至比同时使用参考方法还要好得多。
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