299 citations · 2.2k across the 101 of their papers we have counts for
4 papers · 1 filter
Improved constraints on modified Newtonian gravity from Cassini radio tracking data
R. S. Park, A. Hees, B. Famaey +2
We report an updated constraint on the Solar System quadrupole parameter , which encodes the external field effect predicted by modified gravity versions of the modified Newto…
Testing Screened Modified Gravity
Philippe Brax, Santiago Casas, Harry Desmond +1
Long range scalar fields with a coupling to matter appear to violate known bounds on gravitation in the solar system and the laboratory. This is evaded thanks to screening mechanis…
Constraints on quantum gravity and the photon mass from gamma ray bursts
Deaglan J. Bartlett, Harry Desmond, Pedro G. Ferreira +1
Lorentz invariance violation in quantum gravity (QG) models or a nonzero photon mass, , would lead to an energy-dependent propagation speed for photons, such that photons of d…
Constraints on Equivalence Principle Violation from Gamma Ray Bursts
Deaglan J. Bartlett, Dexter Bergsdal, Harry Desmond +2
Theories of gravity that obey the Weak Equivalence Principle have the same Parametrised Post-Newtonian parameter for all particles at all energies. The large Shapiro time delay…