论文标题
使用射线跟踪来得出Stella SES-VIS光谱仪的预期性能
Using raytracing to derive the expected performance of STELLA's SES-VIS spectrograph
论文作者
论文摘要
Visual Stella Echelle光谱仪（SES-VIS）是Tenerife上Izaña天文台的Stella-II望远镜的新工具。与原始的SES光谱仪一起 - 仍将在近红外使用 - 当前处于设计阶段的新型H＆K优化光谱仪，它将扩展Stella的能力，并随着太空任务的行星候选者的跟进（Tess，Plato2）的跟进。 SES-VI被优化，以确定精确的径向速度确定和长期稳定性。我们已经开发了一个基于Zemax的软件包来创建模拟光谱，然后使用为百事可乐谱图开发的新数据减少软件包提取它们。本文的重点已放在校准光谱上，以及一系列可用的校准源（Flat Field，Th-AR和Fabry-Perot Etalon），可以将其与实际的调试数据进行比较。此外，我们测试了环境参数变化对波长校准精度的影响。
The visual STELLA echelle spectrograph (SES-VIS) is a new instrument for the STELLA-II telescope at the Izaña observatory on Tenerife. Together with the original SES spectrograph - which will still be used in the near IR - and a new H&K-optimized spectrograph, which is currently in the design phase, it will extend the capabilities of STELLA with the follow up of planetary candidates from space missions (TESS, PLATO2). SES-VIS is optimized for precise radial velocity determinations and long term stability. We have developed a ZEMAX based software package to create simulated spectra, which are then extracted using our new data reduction package developed for the PEPSI spectrograph. The focus in this paper has been put on calibration spectra, and the full range of available calibration sources (flat field, Th-Ar, and Fabry-Perot etalon), which can be compared to actual commissioning data once they are available. Furthermore we tested for the effect of changes of the environmental parameters to the wavelength calibration precision.
