Gravitational-wave bursts with memory and experimental prospects

Details Gravitational-wave bursts with memory and experimental prospects Gravitational-wave bursts with memory and experimental prospects

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987natur.327..123b&link_type=abstract

Nature (ISSN 0028-0836), vol. 327, May 14, 1987, p. 123-125. Research supported by the Ministerstvo Vysshego i Srednego Spetsial

Physics

38

Gravitational Wave Antennas, Gravitational Waves, Bursts, Cosmology, Periodic Variations, Stochastic Processes

Scientific paper

Experimenters usually divide the gravitational waves which they hope to detect into three classes: "bursts" in which the wave field rises from zero, oscillates for only a few cycles and then returns to zero; "periodic waves", and "stochastic waves". There is, however, a fourth class, "bursts with memory" (BWM), in which the field rises from zero, oscillates for a few cycles, and then after a burst of duration Δt settles down into a non-zero final value. Here the authors show that for any kind of detector the best way to search for a BWM is to integrate up the signal for an integration time τ ≅ 1/fopt, where fopt is the frequency at which the detector has optimal amplitude sensitivity to ordinary bursts. It is possible, though not highly probable, that BWM will be among the earliest kinds of gravitational waves detected.

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