Mathematics – Logic
Scientific paper
May 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986natur.321..378e&link_type=abstract
Nature (ISSN 0028-0836), vol. 321, May 22, 1986, p. 378, 379.
Mathematics
Logic
Astronomical Observatories, Gravitational Wave Antennas, Laser Interferometry, Technological Forecasting
Scientific paper
The technology for directly observing gravitational waves, which may provide real data within six years from now, is discussed. The makeup of an interferometric gravitational wave detector is briefly described, and the sources that may be detected by such an instrument are discussed. These include single events involving collapse of the core of a single star in a supernova explosion or the coalescence of a close binary system of compact stars. Gravitational waves from the early universe may allow probing back to the Planck era or to later eras when the perturbations in density that eventually gave rise to galaxies were generated. The sensitivities necessary to observe these phenomena are mentioned, and ways to increase interferometer sensitivity are described. The near-term practical realization of a working gravitational wave observatory is discussed.
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