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A Large-Format CCD Camera for Lowell Observatory

洛厄尔天文台大画幅 CCD 相机

基本信息

批准号：
9118457
负责人：
Deidre Hunter
金额：
$ 5万
依托单位：
Lowell Observatory
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1992
资助国家：
美国
起止时间：
1992-04-15 至 1994-12-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9118457&HistoricalAwards=false
关键词：
Large Format CCD Camera Lowell

项目摘要

The objective is the acquisition of a large-format, ultraviolet- sensitive CCD and an appropriate set of image quality filters that will enhance and extend the imaging and spectroscopic capabilities of the Lowell Observatory. For direct imaging, the detector will provide a field of view sixteen times that of the largest available detector at a 1.07-m telescope in direct imaging mode. At the Perkins 1.8-m telescope the field size will initially be increased only slightly, but there will be an order-of-magnitude gain in UV sensitivity; increased coverage will be achieved when a planned focal reducer or Newtonian focus is implemented. By virtue of its increased areal and spectral coverage, the new CCD will allow Lowell Observatory staff and visitors to undertake research that cannot at present be attempted. Among the scientific goals are: studying the blue stellar content and the interstellar medium of galaxies, determining luminosity functions and dynamical properties of open clusters in our own Galaxy, investigating properties of the interstellar medium by means of high-resolution spectroscopy of early-type stars, investigating the large-scale comatic and tail structure of comets using narrowband photometry, enhancing the discovery rate of Earth-approaching asteroids and assessing their hazard to Earth, and searching effectively for Kuiper belt objects.

目标是获取大幅面、紫外线敏感的 CCD 和一套适当的图像质量滤光片，以增强和扩展洛厄尔天文台的成像和光谱能力。对于直接成像，探测器在直接成像模式下提供的视场是 1.07 米望远镜中最大可用探测器的 16 倍。在 Perkins 1.8 米望远镜中，视场大小最初只会略有增加，但紫外线灵敏度将会有一个数量级的增益；当实施计划的减焦器或牛顿焦点时，将实现更大的覆盖范围。凭借其增加的面积和光谱覆盖范围，新的 CCD 将使洛厄尔天文台的工作人员和游客能够进行目前无法尝试的研究。科学目标包括：研究星系的蓝色恒星含量和星际介质，确定银河系疏散星团的光度函数和动力学特性，通过早期型恒星的高分辨率光谱研究星际介质的特性，利用窄带光度测量研究彗星的大尺度彗星和尾部结构，提高接近地球的发现率小行星并评估它们对地球的危害，并有效搜索柯伊伯带天体。