Recent VLBA/VERA/IVS Tests of General Relativity
arXiv:0912.3421 · doi:10.1017/S1743921309990536
Abstract
We 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 and 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.
5 pages, 3 figures, IAU261 conference proceedings. IAU 261 Symposium Proceedings, in press
References in corpus (5)
- The Measurement of the Light Deflection from Jupiter: Experimental Results
- First Fringe Detection with VERA's Dual-Beam System and its Phase Referencing Capability
- Gravimagnetic effect of the barycentric motion of the Sun and determination of the post-Newtonian parameter gamma in the Cassini experiment
- The effect of the motion of the Sun on the light-time in interplanetary relativistic experiments
- On the two approaches to the data analysis of the Cassini interplanetary relativity experiment