Recent VLBA/VERA/IVS tests of general relativity

Ed Fomalont, Sergei Kopeikin, Dayton Jones, Mareki Honma, Oleg Titov
2009 Proceedings of the International Astronomical Union  
AbstractWe report on recent VLBA/VERA/IVS observational tests of General Relativity. First, we will summarize the results from the 2005 VLBA experiment that determined gamma with an accuracy of 0.0003 by measuring the deflection of four compact radio sources by the solar gravitational field. We discuss the limits of precision that can be obtained with VLBA experiments in the future. We describe recent experiments using the three global arrays to measure the aberration of gravity when Jupiter
more » ... Saturn passed within a few arcmin of bright radio sources. These reductions are still in progress, but the anticipated positional accuracy of the VLBA experiment may be about 0.01 mas.
doi:10.1017/s1743921309990536 fatcat:743ilkmbmrgudea7e2a32enjqa