Measurements of airglow on Maunakea at Gemini Observatory
Measurements of airglow on Maunakea at Gemini Observatory
复制标题
双子座天文台对莫纳克亚火山气辉的测量
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
O. Smirnova
中科院分区：
文献类型：
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作者：
K. Roth;Adam E. Smith;A. Stephens;O. Smirnova
位于Maunakea的双子座天文台已经收集光学和红外科学数据近15年。我们已经开始了一项计划，分析来自两个原始设施仪器GMOS和NIRI的成像数据，以测量多个红外和光学宽带滤波器中的天空亮度水平。目前的工作包括从2016年年中到2008年底的数据。我们目前测量的背景水平作为几个操作量（如月相，小时从黄昏，季节）的函数。我们发现，气辉是一个显着的贡献者在几个过滤器的背景水平。双子座主要是一个队列调度望远镜，观测被最佳执行，以提供最有效的利用望远镜的时间。我们发现，虽然大多数参数是很好的理解，大气气辉仍然具有挑战性的预测。这使得在这些过滤器中安排需要黑暗天空的观测变得困难，我们建议进行改进以确保数据质量。
Gemini Observatory on Maunakea has been collecting optical and infrared science data for almost 15 years. We have begun a program to analyze imaging data from two of the original facility instruments, GMOS and NIRI, in order to measure sky brightness levels in multiple infrared and optical broad-band filters. The present work includes data from mid-2016 back through late-2008. We present measured background levels as a function of several operational quantities (e.g. moon phase, hours from twilight, season). We find that airglow is a significant contributor to background levels in several filters. Gemini is primarily a queue scheduled telescope, with observations being optimally executed in order to provide the most efficient use of telescope time. We find that while most parameters are well-understood, the atmospheric airglow remains challenging to predict. This makes it difficult to schedule observations which require dark skies in these filters, and we suggest improvements to ensure data quality.