OH airglow suppressor spectrograph: design and prospects
OH airglow suppressor spectrograph: design and prospects
复制标题
OH 气辉抑制光谱仪：设计与前景
DOI：
10.1117/12.158709
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
A. Pickles
中科院分区：
文献类型：
--
作者：
T. Maihara;F. Iwamuro;D. Hall;L. Cowie;A. Tokunaga;A. Pickles
本文介绍了夏威夷大学2.2米望远镜OH气辉抑制摄谱仪的设计。用于1.1至1.8微米范围内的低分辨率光谱学的前置光学系统的独特功能是通过专门设计的光谱掩模去除大部分强OH发射线的能力。用OH抑制剂摄谱仪，背景通量平均降低到天然背景的1/30左右。与传统方法相比，在极限幅度方面的灵敏度增益预计约为1.5 mag。
The design of an OH airglow suppressor spectrograph for use on the University of Hawaii 2.2 m telescope is presented. The unique feature of the pre-optics system for low resolution spectroscopy in the 1.1 to 1.8 micrometers range is the capability of removing most of the intense OH emission lines by a specially designed spectroscopic mask. With the OH suppressor spectrography, the background flux is reduced to about 1/30 the natural background on the average. The sensitivity gain in terms of limiting magnitude is expected to be approximately 1.5 mag, compared with the conventional method.