Gravitational Wave Detection:. a Survey of the Worldwide Program

Details Gravitational Wave Detection:. a Survey of the Worldwide Program Gravitational Wave Detection:. a Survey of the Worldwide Program

Feb 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005tmgm.meet..278d&link_type=abstract

The Tenth Marcel Grossmann Meeting. Proceedings of the MG10 Meeting held at Brazilian Center for Research in Physics (CBPF), Rio

Physics

Scientific paper

The effort to detect gravitational waves has increased steadily in recent years. More than 20 major projects in gravitational wave detection are underway around the world. They span the spectrum from below 10-16 Hz to above 104 Hz. Detectors can be divided into two categories: those that use resonant masses and those that use electromagnetic beams. For electromagnetic beams the approaches vary according to the frequency band. In the microhertz band the timing of pulsar signals offers the possibility of detecting the coalescence of massive black holes during galactic mergers. In the millihertz band numerous galactic binary star sources plus extragalactic mergers should be detectable using space laser interferometry. Smaller scale space laser techniques could also be used in the band around 1Hz. In the audiofrequency band terrestrial laser interferometers should detect signals associated with stellar mass compact objects, particularly neutron star births and coalescences. Resonant mass detectors in the form of bars and spheres offer high sensitivity in the 1-10kHz range. This article presents an overview of the field emphasising the present experimental efforts and the future projects which will make gravitational wave astronomy a reality.

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