English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Experimental verification of the existence of gravimagnetic fields generatedby currents of matter is important for a complete understanding and formulationof gravitational physics. Although the rotational `intrinsic' gravimagneticfield has been extensively studied and is now being measured by the GravityProbe B, the `extrinsic' gravimagnetic field generated by the translationalcurrent of matter is less well studied. The present paper uses thepost-Newtonian parametrized Einstein and light geodesics equations to show thatthe `extrinsic' gravimagnetic field generated by the translational current ofmatter can be measured by observing the relativistic time delay and/or lightdeflection caused by the moving mass. We prove that the `extrinsic'gravimagnetic field is generated by the relativistic effect of the aberrationof the gravity force caused by the Lorentz transformation of the metric tensorand the Levi-Civita connection. We show that the Lorentz transformation of thegravity field variables is equivalent to the technique of the retardedLienard-Wiechert gravitational potentials predicting that a light particle isdeflected by gravitational field of a moving body from its retarded position sothat both general-relativistic phenomena -- the aberration and the retardationof gravity -- are tightly connected and observing the aberration of gravityproves that gravity has a causal nature. We explain in this framework the 2002deflection experiment of a quasar by Jupiter where the aberration of gravityfrom its orbital motion was measured with accuracy 20%. We describe a theory ofVLBI experiment to measure the gravitational deflection of radio waves from aquasar by the Sun, as viewed by a moving observer from the geocentric frame, toimprove the measurement accuracy of the aberration of gravity to a few percent.Comment: 44 pages including references, 7 figures, 1 table; accepted for  publication in General Relativity and Gravitatio

Gravimagnetism, causality, and aberration of gravity in the gravitational light-ray deflection experiments