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dc.contributor.authorKopeikin, Sergei M.eng
dc.date.issued2005eng
dc.description.abstractExperimental discovery of the gravitomagnetic fields generated by translational and/or rotational currents of matter is one of primary goals of modern gravitational physics. The rotational (intrinsic) gravitomagnetic field of the Earth is currently measured by the Gravity Probe B. The present paper makes use of a parametrized post-Newtonian (PN) expansion of the Einstein equations to demonstrate how the extrinsic gravitomagnetic field generated by the translational current of matter can be measured by observing the relativistic time delay caused by a moving gravitational lens. We prove that measuring the extrinsic gravitomagnetic field is equivalent to testing relativistic effect of the aberration of gravity caused by the Lorentz transformation of the gravitational field. We unfold that the recent Jovian deflection experiment is a null-type experiment testing the Lorentz invariance of the gravitational field (aberration of gravity), thus, confirming existence of the extrinsic gravitomagnetic field associated with orbital motion of Jupiter with accuracy 20%. We comment on erroneous interpretations of the Jovian deflection experiment given by a number of researchers who are not familiar with modern VLBI technique and subtleties of JPL ephemeris. We propose to measure the aberration of gravity effect more accurately by observing gravitational deflection of light by the Sun and processing VLBI observations in the geocentric frame with respect to which the Sun is moving with velocity 30 km/s.eng
dc.description.sponsorshipWe wish to acknowledge the grant support of the University of Missouri-Columbia and the Eppley Foundation for Research.eng
dc.identifier.citationarXiv:gr-qc/0507001v3eng
dc.identifier.urihttp://hdl.handle.net/10355/6943eng
dc.languageEnglisheng
dc.publisherarXiveng
dc.relation.ispartofcollectionUniversity of Missouri--Columbia. College of Arts and Sciences. Department of Physics and Astronomy. Physics and Astronomy publicationseng
dc.source.urihttp://arxiv.org/PS_cache/gr-qc/pdf/0507/0507001v3.pdfeng
dc.subjectspeed of gravityeng
dc.subjectgeneral relativityeng
dc.subjectspeed of lighteng
dc.subjectrelativistic time delayeng
dc.subject.lcshGeneral relativity (Physics)eng
dc.subject.lcshGravitational waveseng
dc.subject.lcshLight -- Speedeng
dc.titleGravitomagnetism and the Speed of Gravityeng
dc.typeArticleeng


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