摘要
ASTROD．GW（ASTROD[Astrodynamical Space Test of Relativity using Optical Devices]optimized for Gravitation Wave detection）是ASTROD专注于引力波探测的优化方案，组成任务的3个航天器分别位于日地拉格朗日点L3、L4和L5点附近，组成臂长为2．6×10^8km的干涉阵列．根据优化得到的ASTROD．GW20yr任务轨道，利用CGC2．7（CGC：Centerfor Gravitationand Cosmology）星历，采用适当数值计算的方法，对引力波探测中所用到的时间迟延干涉路径进行分析和计算．
ASTROD-GW （ASTROD [Astrodynamical Space Test of Relativity using Optical Devices] optimized for Gravitation Wave detection） is an optimization of ASTROD to focus on the goal of detecting gravitation waves. The three spacecraft in the mission orbits are chosen to be near the Sun-Earth Lagrange points L3, La and Ls. They form a nearly equilateral array and an interferometric array with the arm lengths of about 260 million kilometers. A set of 20-year optimized mission orbits of the ASTROD-GW spacecraft is worked out by us. With this, we perform the time delay interferometry simulation numerically using CGC2.7 ephemeris framework.
出处
《天文学报》
CSCD
北大核心
2011年第5期427-442,共16页
Acta Astronomica Sinica
关键词
引力波
仪器
干涉仪
方法
数值
gravitational waves, instrumentation： interferometers, methods： numerical
