On the influence of gravitational radiation on a gyroscope
L Herrera; J L Hernández Pastora; L Herrera; Area de Física Teórica, Facultad de Ciencias, Universidad de Salamanca, 37008 Salamanca, Spain; J L Hernández Pastora; Area de Física Teórica, Facultad de Ciencias, Universidad de Salamanca, 37008 Salamanca, Spain
Журнал:
Classical and Quantum Gravity
Дата:
2000-09-21
Аннотация:
We calculate the precession of a gyroscope at rest in a Bondi spacetime. It is shown that, far from the source, the leading term in the rate of precession of the gyroscope is simply expressed through the news function of the system, and vanishes if and only if there is no news. Rough estimates are presented, illustrating the order of magnitude of the expected effect for different scenarios. It is also shown from the next-order term (1/r<sup>2</sup>) that non-radiative (but time-dependent) spacetimes will produce a gyroscope precession of that order, thereby providing `observational' evidence for the violation of Huygens principle.
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