High-resolution solar spectroscopy with TESOS – Upgrade from a double to a triple system
High-resolution solar spectroscopy with TESOS – Upgrade from a double to a triple system
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采用 TESOS 的高分辨率太阳光谱 – 从双系统升级到三系统
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发表时间：
2002
期刊：
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通讯作者：
T. Kentischer
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作者：
A. Tritschler;W. Schmidt;K. Langhans;T. Kentischer
我们提出的特点，并证明了三重标准具太阳光谱仪（TESOS）在特内里费岛的德国真空塔望远镜（VTT）运行的性能。Fabry-Pérot干涉仪TESOS非常适合于精确测量光球和色球运动。TESOS于1997年安装，配备了两个标准具，最近完成了第三个标准具，并升级了两个高速背照式CCD相机。0.089弧秒像素-1的图像比例适合望远镜的分辨率。改进后的系统使帧速率高达每秒5帧。300 000的光谱分辨率允许对弱光球线进行光谱诊断，包括430.6 nm处G波段内的单个CH线。
We present the characteristics and demonstrate the performance of the Triple Etalon SOlar Spectrometer (TESOS) operated at the German Vacuum Tower Telescope (VTT) on Tenerife. The Fabry–Pérot interferometer TESOS is ideally suited for precise measurements of photospheric and chromospheric motion. Installed in 1997 and equipped with two etalons, TESOS has recently been completed with a third etalon and upgraded with two high-speed, backside-illuminated CCD cameras. The image scale of 0.089 arc sec pixel−1 is adapted to the resolution of the telescope. The improved system enables frame rates up to 5 frames per second. The spectral resolution of 300 000 allows for spectral diagnostics of weak photospheric lines, including individual CH-lines within the G-band at 430.6 nm.