Physics
Scientific paper
May 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991phrvl..66.2549d&link_type=abstract
Physical Review Letters (ISSN 0031-9007), vol. 66, May 20, 1991, p. 2549-2552. DFG-supported research.
Physics
59
Binary Stars, Gravitational Effects, Pulsars, Stellar Gravitation, Eccentricity, Gravitational Fields, Nonlinear Systems, Stellar Orbits
Scientific paper
One of the few experimental ways to investigate the nonlinear properties of the gravitational interaction is to test the 'strong equivalence principle', i.e., to test whether the ratio m(gravitational)/m(inertial) is 1 for self-gravitating bodies. It is pointed out that existing observational data on the class of small-eccentricity long-orbital-period binary pulsars already provide a limit which goes beyond the corresponding solar-system limits in probing strong-gravitational-field effects. Possible observational ways of improving this limit are suggested.
Damour Thibault
Schaefer Gerhard
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