Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008mgm..conf.2597c&link_type=abstract
"THE ELEVENTH MARCEL GROSSMANN MEETING On Recent Developments in Theoretical and Experimental General Relativity, Gravitation an
Astronomy and Astrophysics
Astronomy
Scientific paper
The ESA astrometric mission Gaia will be able to carry out general relativistic tests by means of both global and differential astrometric measurements. Global tests will be done through the full astrometric reconstruction of the celestial sphere, while the differential experiments will be implemented in the form of repeated Eddington-like measurements, i.e., comparing the evolution of relative distances in stellar fields observed in the vicinity of a giant planet like Jupiter. Results based on simulated observations show that Gaia can provide, for the first time, the measurement of the bending effect due to the quadrupole moment with a 3σ confidence level. New simulations of the differential experiments which utilize selected fields from the GSCII catalogue and a realistic error model, show how to further improve the Gaia ability to detect the quadrupole light deflection.
Crosta Maria Teresa
Gardiol Daniele
Lattanzi Mario G.
Morbidelli Roberto
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