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What can we learn about gravitational wave physics with an elastic spherial antenna?
Lobo Gutiérrez, José Alberto
Universitat de Barcelona
A general formalism is set up to analyze the response of an arbitrary solid elastic body to an arbitrary metric gravitational wave (GW) perturbation, which fully displays the details of the interaction antenna wave. The formalism is applied to the spherical detector, whose sensitivity parameters are thereby scrutinized. A multimode transfer function is defined to study the amplitude sensitivity, and absorption cross sections are calculated for a general metric theory of GW physics. Their scaling properties are shown to be independent of the underlying theory, with interesting consequences for future detector design. The GW incidence direction deconvolution problem is also discussed, always within the context of a general metric theory of the gravitational field.
Ones gravitacionals
Gravitational waves
(c) The American Physical Society, 1995
The American Physical Society

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