用于无干扰Laser干涉测量的地球同步天线（GADFLI）
Geostationary Antenna for Disturbance-Free Laser Interferometry (GADFLI)
摘要：
我们提出了一个任务的概念，地球静止天线的无干扰激光干涉测量（GADFLI），为空间为基础的引力波干涉仪组成的三颗卫星在地球静止轨道周围。与激光干涉仪空间天线（LISA）的标称设计相比，这一概念具有以下优点：显著降低了对望远镜尺寸和激光功率的要求，降低了发射质量，大大改善了73000 km臂长较短导致的散粒噪声，简化了通信并降低了成本，总体成本较低，我们（粗略）估计为12亿美元。GADFLI保留了LISA的大部分科学，特别是对大质量黑洞双星合并的观测，尽管在我们考虑的潜在设计中，SNR对所有质量都有所降低。
英文摘要：
We present a mission concept, the Geostationary Antenna for Disturbance-Free Laser Interferometry (GADFLI), for a space-based gravitational-wave interferometer consisting of three satellites in geostationary orbit around the Earth. Compared to the nominal design of the Laser Interferometer Space Antenna (LISA), this concept has the advantages of significantly decreased requirements on the telescope size and laser power, decreased launch mass, substantially improved shot noise resulting from the shorter 73000 km armlengths, simplified and less expensive communications, and an overall lower cost which we (roughly) estimate at $1.2B. GADFLI preserves much of the science of LISA, particularly the observation of massive black-hole binary coalescences, although the SNR is diminished for all masses in the potential designs we consider.
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