| ASTROD-GW时间迟延干涉 |
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| 引用本文： | 王刚,倪维斗.ASTROD-GW时间迟延干涉[J].天文学报,2011,52(5). |
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| 作者姓名： | 王刚 倪维斗 |
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| 作者单位： | 1. 中国科学院紫金山天文台 南京210008;中国科学院研究生院 北京100049
2. 上海师范大学联合天体物理中心 上海200234;清华大学物理系 新竹300 |
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| 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× 108 km的干涉阵列.根据优化得到的ASTROD-GW 20 yr任务轨道,利用CGC2.7 (CGC:Center for Gravitation and 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.
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| 关 键 词： | 引力波 仪器:干涉仪 方法:数值 |
ASTROD-GW Time Delay Interferometry |
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| WANG Gang,NI Wei-tou.ASTROD-GW Time Delay Interferometry[J].Acta Astronomica Sinica,2011,52(5). |
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| Authors: | WANG Gang NI Wei-tou |
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| Institution: | WANG Gang~(1,2) NI Wei-tou~(3,4) (1 Purple Mountain Observatory,Chinese Academy of Sciences,Nanjing 210008) (2 Graduate University of Chinese Academy of Sciences,Beijing 100049) (3 Shanghai United Center for Astrophysics,Shanghai Normal University,Shanghai 200234) (4 Department of Physics,National Tsing Hua University,Hsinchu 300) |
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| Abstract: | ASTROD-GW(ASTRODAstrodynamical 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 L_3,L_4 and L_5.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 ... |
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| Keywords: | gravitational waves instrumentation interferometers methods numerical |
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