The Measurement of the Light Deflection from Jupiter: Experimental Results
By E. Fomalont, Sergei M. Kopeikin. 2003
138 citations recorded by the source corpus.
We have determined the relativistic light deflection of the quasar J0842+1835 as Jupiter passed within 3.′7 on 2002 September 8, by measuring the time delay using the Very Long Baseline Array (VLBA) and Effelsberg radio telescopes at 8.4 GHz. At closest approach, general relativity (GR) predicts a radial (static) deflection of 1190 μas and a tangential (retarded) deflection in the direction of Jupiter's motion of 51 μas. Our experiment achieved an rms position error of ≤10 μas and measured this retarded deflection to be 0.98 ± 0.19 (rms error) times that predicted by GR. The increased positional accuracy for this VLBI phase-referencing experiment was achieved by using two calibrator sources. Comments on the interpretation of this experiment are given.
Subfields: Aerospace Engineering, Astronomy and Astrophysics
View Paper: https://www.semanticscholar.org/paper/27980803135ca952ef9e5b889349f6c8ce3d0c19
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Citations in the corpus
- Microarcsecond Radio Astrometry (2013, background): “Additionally, Fomalont & Kopeikin (2003) detected the deflection of radio waves by Jupiter, including the retarded delay caused by Jupiter’s motion, and claimed that this constrained the speed of gravitational waves, although this claim is controversial (see Asada (2002); Will (2003); Fomalont &…”
- Photon and graviton mass limits (2008, background): “Fomalont and Kopeikin (218), compared the ∼ (51 ± 10) μas deflection observed with the higher-order term.”
- The Confrontation between General Relativity and Experiment (2005, background): “On September 8, 2002, Jupiter passed almost in front of a quasar, and Kopeikin and Fomalont made precise measurements of the Shapiro delay with picosecond timing accuracy, and claimed to have measured the correction term to about 20 percent [112, 153, 148, 149].”