Under the standard model extension (SME) framework, Lorentz invariance is tested in five binary pulsars: PSR J0737-3039, PSR B1534+12, PSR J1756-2251, PSR B1913+16 and PSR B2127+11C. By analyzing the advance of periastron, we obtain the constraints on a dimensionless combination of SME parameters that is sensitive to timing observations. The results imply no evidence for the break of Lorentz invariance at the 10-10 level, one order of magnitude larger than the previous estimation.
Research in Astronomy and Astrophysics
- Pub Date:
- January 2013
- General Relativity and Quantum Cosmology;
- Astrophysics - High Energy Astrophysical Phenomena
- 4 pages, no figure, accepted for publication in RAA