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Gravitational Waves - Recent Observations by Virgo and LIGO

Nelson Christensen

11h — Site Valrose

The new generation of gravitational wave detectors (LIGO in the U.S. and Virgo in Europe) has now succeeded in receiving signals from coalescing binaries made of black holes and of neutron stars. This talk will begin with a review of the physical nature of gravitational waves, the principles of operation of interferometric detectors, and the extreme measurement challenges that have been overcome. Descriptions of various issues with the interferometric detectors will be given, with special emphasis on experimental topics that are of interest to Artemis and possibly INPHYNI as well.