Binary Star Speckle Interferometry and Photometry

有了这笔资金，dr。乔治亚州立大学的麦卡利斯特和哈特科普夫将继续对双星系统进行高角度分辨率的观测。双星是确定恒星质量的唯一基本来源，它们可以直接确定恒星的距离、半径、光度和温度。佐治亚州立大学（GSU）的双星双星散斑干涉测量项目是世界上唯一一个将现代高分辨率成像散斑技术常规应用于这些基本天体物理问题的项目。GSU斑点组操作着最先进的数据采集和分析设备，并定期在美国国家天文台和其他地方的大型望远镜上获得时间。散斑观测被用于极大地改进已知双星的轨道元素，并用于计算已分辨光谱系统和其他新发现的双星的轨道。目前也正在开发和应用一些技术，以便能够恢复双星各组成部分在角度分离方面的强度和颜色信息，这是现有方法迄今无法做到的。

With this grant Drs. McAlister and Hartkopf at Georgia State University will continue a program of high angular resolution observations of binary star systems. Binary stars are the only source for the fundamental determination of stellar masses, and they can provide direct determinations of stellar distances, radii, luminosities, and temperatures. The Georgia State University (GSU) program of binary star of binary star speckle interferometry is the only such effort in the world routinely applying modern methods of high resolution imaging speckle techniques to these fundamental astrophysical problems. The GSU speckle group operates state-of- the-art data acquisition and analysis facilities and is routinely granted time on large telescopes at the U.S. national observatories and elsewhere. Speckle observations are being used to greatly improve the orbital elements of known binaries and to calculate the orbits of resolved spectroscopic systems and other newly discovered binaries. Techniques are also being developed and applied that enable the recovery of intensity and color information for the individual components of binary stars in a regime of angular separation heretofore inaccessible to existing methods.