论文标题
Stella机器人天文台的第二代光谱仪器
Second generation spectroscopic instrumentation for the STELLA robotic observatory
论文作者
论文摘要
当前的Stella Echelle光谱仪（SES）以55000的光谱分辨率记录了390nm至870nm，将用三个光谱带中的专门光谱仪替换。紫外线将被新设计的H＆K光谱仪覆盖，覆盖380nm至470nm（SES-H＆K），视觉带（470nm-690nm）将由SES-VIS覆盖，SES-VIS将覆盖，这是一个为高辐射精度而设计的，该光谱仪是由高辐射精度覆盖的，由10900年覆盖了1090的SESN，并将其覆盖为1090的SESNERSNERSNENN。为了改善紫外线传输并容纳三种不同的纤维馈电，望远镜的主要焦点校正器将进行翻新，从而导致具有F/2 1200mm球形主级别的光学系统，这是一个带有2个Arcsec孔径的4镜孔仪，带有2个ARCSEC孔径，大气分散器（ADC）和两个二十一根二十一根二十二个二十二个副型折叠式，喂养3个均匀的喂食3个均匀的喂食。新设计的H＆K光谱仪将是梯形光谱仪，基于使用F/5摄像头，具有41.6 L/mm和110mmx420mm的R4晶格，使用21个频谱订单，使用F/5摄像头（如Traficos，Mike，Mike，KPF）中的交叉口气（如Traficos，Mike，KPF）。所有三个光谱仪的光谱分辨率将与当前SES的55000相比。
The current STELLA Echelle spectrograph (SES), which records 390nm to 870nm in one shot at a spectral resolution of 55000, will be replaced by a suite of specialized spectrographs in three spectral bands. The UV will be covered by a newly designed H&K spectrograph covering 380nm to 470nm (SES-H&K), the visual band (470nm - 690nm) will be covered by SES-VIS, which is a vacuum-stabilized spectrograph designed for high radial-velocity accuracy, and the NIR will be covered by the current SES spectrograph from 690nm to 1050nm. In order to improve the UV transmission, and to accommodate three different fibre-feeds, the prime focus corrector of the telescope will be refurbished, leading to an optical system with the f/2 1200mm spherical primary, a 4-lens collimator with 2 arcsec aperture, atmospheric dispersion corrector (ADC), and two dichroic beam splitters, feeding 3 separate fibre feeds for the three bands. The newly designed H&K spectrograph will be an Echelle spectrograph, based on a R4-grating with 41.6 l/mm and 110mmx420mm, using a f/5 camera and the cross-disperser in double pass (as in TRAFICOS, MIKE, KPF), using 21 spectral orders. The spectral resolution of all three spectrographs will be comparable to the 55000 of the current SES.
