Bounding the graviton mass with binary pulsar observations

Details Bounding the graviton mass with binary pulsar observations Bounding the graviton mass with binary pulsar observations

2001-12-10

arxiv.org/abs/gr-qc/0112018v1

Class.Quant.Grav. 19 (2002) 1355-1360

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

9 pages, 1 figure. Presented at Fourth Edoardo Amaldi Conference on Gravitational Waves, Perth, 2001

Scientific paper

10.1088/0264-9381/19/7/318

By comparing the observed orbital decay of the binary pulsars PSRB1913+16 and PSRB1534+12 to that predicted by general relativity due to gravitational-wave emission, we are able to bound the mass of the graviton to be less than $7.6\times10^{-20} \text{eV}/c^2$ at 90% confidence. This is the first such bound to be derived from dynamic gravitational fields. It is approximately two orders of magnitude weaker than the static-field bound from solar system observations, and will improve with further observations.

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