New tests of the strong equivalence principle using binary-pulsar data

Details New tests of the strong equivalence principle using binary-pulsar data New tests of the strong equivalence principle using binary-pulsar data

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.

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