Zhongshan University intends to launch three satellites to detect gravitational waves-marie digby

Zhongshan University intends to launch three satellites to detect gravitational waves leading in the lyran plan intended to shoot three satellites to detect gravitational waves expected execution period of 2016~2035 original title: Samsung "Lyra" to listen to the gravitational wave the Guangzhou Daily reporter Xu Jing Zhongshan University led the gravitational wave detection project "Lyra plan" with American scientists detected gravitational special attention is paid to wave. "The plan" Dean Professor Li Miao of Zhongshan University participants, astronomy and Space Science Research Institute introduced the "Lyra plan" is China’s own development feasible solution space of gravitational wave detection, launched three satellites to detect gravitational waves, the expected execution period of 2016~2035 years, the implementation of four phases. The project will also dig caves, build observation stations, and build comprehensive research buildings. The plan intends to cast 300 million start yesterday, Professor Li Miao Dean of Zhongshan University Institute of astronomy and space science entitled "Zhongshan University" the plan "Introduction" in WeChat public number, for the first time outside the system, introduced the "Lyra plan". The comprehensive plan for the first phase of the project facilities including comprehensive research building, the 30 thousand square meters of 10 thousand square meters, located in the Nanshan cave statically laboratory the top of the 5000 square meters of teaching, scientific research and scientific multifunctional observation station. At present, the Zhuhai municipal government has promised to invest about 300 million yuan of funds to start the infrastructure construction plan. After the completion of the project, the Zhongshan University and Zhuhai will become the most important research center of space gravity experiment and other space precision measurement physics in china. The plan is divided into four phases the expected execution period of 2016-2035 years, is divided into four phases: (1) 2016-2020: the completion of the lunar deep space satellite laser ranging, the space of equivalence principle test and the next generation of satellite gravity experiments required the development of key technologies. The main research achievements include: a new generation of lunar laser ranging reflector, lunar laser ranging stations, high precision accelerometer, drag free control (including micro thruster), high precision spaceborne laser interferometer, inter satellite laser ranging technology; (2) 2021-2025: complete space experimental test of the equivalence principle and the next generation the satellite gravity experimental prototype, and the successful launch of the next generation of satellite gravity and space equivalent principle experiment satellite. The main research results include: ultra high precision large satellite platform, and further improve the laser gyro accelerometer, drag free control, high precision spaceborne laser interferometer, inter satellite laser ranging technology; (3) 2026-2030: space gravitational wave detection technique, the satellite payload engineering prototype; (4) 2031-2035: the satellite system testing, system assembly, the launch of the space gravitational wave detection satellite. The launch of three satellites to obtain the gravitational wave information Li Miao, "the starting point plan" is feasible according to the technical ability of China’s actual and future development prospects for dozens of years, our country puts forward feasible scheme to carry out independent space gravitational wave detection. In the preliminary conceptual discussion at present, the three will use the same satellite form a game 中山大学拟发射三颗卫星探测引力波 中大主导的“天琴计划”拟射三颗卫星探测引力波 预期执行期为2016~2035年   原标题:三星架“天琴”倾听引力波   文 广州日报记者徐静   中山大学主导的引力波探测工程“天琴计划”随着美国科学家探测到引力波受到特别的关注。“天琴计划”参与者、中山大学天文与空间科学研究院院长李淼教授介绍,“天琴计划”是我国自主开展空间引力波探测的可行方案,发射三颗卫星探测引力波,该计划预期执行期为2016~2035年,分四阶段实施。项目还将挖山洞,建观测站以及建设综合研究大楼。   拟投3亿启动天琴计划   昨天,中山大学天文与空间科学研究院院长李淼教授在个人微信公众号上发表题为《中山大学“天琴计划”简介》,首次系统对外介绍“天琴计划”。   天琴计划综合设施的第一期工程包括3万平方米的天琴综合研究大楼、1万平方米的山洞超静实验室、位于南山山顶的5000平方米教学、科研、科普多功能观测站。目前珠海市政府已经答应投入约3亿元经费启动天琴计划基础建设。   预期建成以后可以使中山大学和珠海成为我国空间引力实验和其他空间精密测量物理的最重要研究中心。   天琴计划分四阶段实施   天琴计划预期执行期为2016-2035年,分四阶段实施:(1)2016-2020年:完成月球 深空卫星激光测距、空间等效原理检验实验和下一代重力卫星实验所需关键技术研发。主要研发成果包括:新一代月球激光测距反射器、月球激光测距台站、高精度加速度计、无拖曳控制(包含微推进器)、高精度星载激光干涉仪、星间激光测距技术等;   (2)2021-2025年:完成空间等效原理检验实验和下一代重力卫星实验工程样机,并成功发射下一代重力卫星和空间等效原理实验卫星。主要研发成果包含:超静卫星平台、高精度大型激光陀螺仪以及进一步提高加速度计、无拖曳控制、高精度星载激光干涉仪、星间激光测距等技术;   (3)2026-2030年:完成空间引力波探测关键技术,完成卫星载荷工程样机;   (4)2031-2035年:进行卫星系统整机联调测试、系统组装,发射空间引力波探测卫星。   发射三颗卫星获取引力波信息   李淼介绍,“天琴计划”的出发点是切实根据我国的技术能力实际和未来几十年的发展前景,提出我国自主开展空间引力波探测的可行方案。   在目前讨论的初步概念中,天琴将采用三颗全同的卫星构成一个等边三角形阵列,每颗卫星内部都包含一个或两个极其小心悬浮起来的检验质量。卫星上将安装推力可以精细调节的微牛级推进器,实时调节卫星的运动姿态,使得检验质量始终保持与周围的保护容器互不接触的状态。这样检验质量将只在引力的作用下运动,而来自太阳风或太阳光压等细微的非引力扰动将被卫星外壳屏蔽掉。   高精度的激光干涉测距技术将被用来记录由引力波引起的、不同卫星上检验质量之间的细微距离变化,从而获得有关引力波的信息。   “天琴”的卫星将在以地球为中心、高度约10万公里的轨道上运行,针对确定的引力波源进行探测。这样的选择能够避免测到引力波信号却无法确定引力波源的问题。   中科院公布“空间太极计划”   据新华社电 (记者吴晶晶、白国龙)中国科学院16日公布了空间引力波探测与研究的“空间太极计划”。按照这一计划,我国将在2030年前后发射由位于等边三角形顶端三颗卫星组成的引力波探测星组,用激光干涉方法进行中低频波段引力波的直接探测。主要科学目标是观测双黑洞并合和极大质量比天体并合时产生的引力波辐射,以及其他的宇宙引力波辐射过程。   中科院力学研究所胡文瑞院士表示,“我国目前的技术能力与国际先进水平还有一定的差距,这种差距可以通过良好的国际合作得到一定的弥补。”   胡文瑞说,“空间太极计划”是一个中欧合作的国际合作计划,目前有两个方案:方案一是参加欧洲空间局的eLISA双边合作计划;方案二是发射一组中国的引力波探测卫星组,与2035年左右发射的eLISA卫星组同时遨游太空,进行低频引力波探测。   据介绍,空间引力波探测被列入中科院制订的空间2050年规划。2008年由中科院发起,中科院多个研究所及院外高校科研单位共同参与。 责任编辑:李天奕相关的主题文章: