Gravitational waves - A tough challenge

Details Gravitational waves - A tough challenge Gravitational waves - A tough challenge

Aug 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978newsc..79..464h&link_type=abstract

New Scientist, vol. 79, Aug. 17, 1978, p. 464-467.

Astronomy and Astrophysics

Astronomy

Antenna Design, Gravitational Wave Antennas, Gravitational Waves, Binary Stars, Black Holes (Astronomy), Energy Spectra, Gravitational Collapse, Pulsars

Scientific paper

The detection of gravitational waves and some devices designed for this purpose are discussed. Fundamental limits on the sensitivity of a gravitational-wave detector are examined, and experimental approaches to improving detector sensitivity are outlined. The devices described include low-temperature detectors using bars made from aluminum and from a single crystal of sapphire or silicon as well as laser-interferometer-type detectors. Planned interferometer-type detector systems with baselines of 1, 10, and 1000 meters are also noted. The possibility of employing spacecraft to obtain still longer baselines is considered.

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