Laser Interferometer Space Antenna
Laser Interferometer Space Antenna
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发表时间：
2012-04
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通讯作者：
M. Hewitson
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作者：
M. Hewitson
在ESA选择引力宇宙和丽莎探路者的成功飞行之后，丽莎联盟现在提出了一项为期4年的使命，以响应ESA对L3任务的呼吁。该观测站将以三个臂为基础，有六个有源激光链路，三个相同的航天器之间呈三角形编队，相距250万公里。丽莎是一个全天空监视器，将提供一个动态宇宙的广阔视野，使用引力波作为新的和独特的信使来揭开引力宇宙的面纱。它提供了有史以来最接近TeV能量尺度的婴儿宇宙的视图，在银河系中以验证双星的形式存在，并且可以探测整个宇宙，从黑洞视界附近的最小尺度，一直到宇宙学尺度。丽莎使命将在其轨道上跟随地球的同时扫描整个天空，同时获得引力波的两个偏振，并将测量在低于10 ^{-4}\，$Hz至高于10 ^{-1}\，$Hz的波段内具有天体物理学相关灵敏度的源参数。
Following the selection of The Gravitational Universe by ESA, and the successful flight of LISA Pathfinder, the LISA Consortium now proposes a 4 year mission in response to ESA's call for missions for L3. The observatory will be based on three arms with six active laser links, between three identical spacecraft in a triangular formation separated by 2.5 million km. LISA is an all-sky monitor and will offer a wide view of a dynamic cosmos using Gravitational Waves as new and unique messengers to unveil The Gravitational Universe. It provides the closest ever view of the infant Universe at TeV energy scales, has known sources in the form of verification binaries in the Milky Way, and can probe the entire Universe, from its smallest scales near the horizons of black holes, all the way to cosmological scales. The LISA mission will scan the entire sky as it follows behind the Earth in its orbit, obtaining both polarisations of the Gravitational Waves simultaneously, and will measure source parameters with astrophysically relevant sensitivity in a band from below $10^{-4}\,$Hz to above $10^{-1}\,$Hz.