Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988esasp.283..121k&link_type=abstract
In ESA, Space Science and Fundamental Physics p 121-130 (SEE N89-11638 02-88)
Astronomy and Astrophysics
Astrophysics
Astrophysics, Gravitational Wave Antennas, Gravitational Waves, Supernovae, Binary Stars, Chirp Signals, Electromagnetic Interference, Gravitational Effects, Laser Interferometry, Oscillators
Scientific paper
Quantitative arguments and simple formulas or rules of thumb which any physicist can apply to estimate the emission of gravitational waves from cosmic sources and their effect on detectors are reviewed. Two main antenna principles are sketched: mechanical oscillators, and interference of two beams of electromagnetic radiation. Proposals to use space equipment are mentioned. Two main expected types of signals in the frequency range 0.1 to 10 kHz are discussed: stellar core collapse (supernova) and final coalescence in compact binaries (chirp signal). Estimates of their rates and strength are confronted with the sensitivity of existing antennas and of the km-size laser interferometers being developed.
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