报告题目：GW detection in space: projects of large space-borne laser interferometers

报 告 人：Albrecht Ruediger （Albert-Einstein-Institut Hannover, Germany）

报告时间：2011年6月2日（周四）14:30

报告地点：南京大学蒙民伟楼2402室

报告摘要：Gravitational waves of low frequencies (below 1 Hz) cannot be measured by terrestrial detectors, due to many noise contributions in that frequency range. Laser interferometers in space, with huge arm-lengths, have been proposed and are under active study.  The most prominent of these, LISA, has been studied in a NASA/ESA collaboration. Its arm-lengths of 5 million km will allow measuring GWs from cosmological events stemming from distant galaxies and involving massive black holes. The envisaged sensitivities would allow a deep insight into many cosmological questions. Plans are under way in China to take an active part in realizing a space detector beyond the specifications of LISA.  The launch of a technology demonstrator mission, the LISA Pathfinder, is within a few years from now.  It will verify the key technologies that are crucial for LISA, but also for other space missions using laser interferometry.