Abstract
We made very-long-baseline-interferometry observations of the extragalactic radio sources 3C273B and 3C279 to measure the gravitational deflection of radio waves by the Sun. Cross-correlation of data recorded at antennas in California and Massachusetts at 2, 8, and 23 GHz during a ten-day period surrounding the October 1987 solar occultation of 3C279 yielded plasma-corrected group delays, from which we obtained (estimated standard error), corresponding to a gravitational deflection times that predicted by general relativity.
- Received 14 April 1995
DOI:https://doi.org/10.1103/PhysRevLett.75.1439
©1995 American Physical Society