351 citations · 837 across the 8 of their papers we have counts for
4 papers · 1 filter
Limits on a Gravitational Field Dependence of the Proton--Electron Mass Ratio from H in White Dwarf Stars
Julija Bagdonaite, Edcel J. Salumbides, Simon P. Preval +4
Spectra of molecular hydrogen (H) are employed to search for a possible proton-to-electron mass ratio () dependence on gravity. The Lyman transitions of H, observed with…
Varying Alpha
John D. Barrow
We review properties of cosmological theories for the variation of the fine structure 'constant'. We highlight some general features of the cosmological models that exist in these…
The Power of General Relativity
Timothy Clifton, John D. Barrow
We study the cosmological and weak-field properties of theories of gravity derived by extending general relativity by means of a Lagrangian proportional to . This scale-fr…
String Cosmology
John D. Barrow, Kerstin E. Kunze
An overview is given of the formulation of low-energy string cosmologies together with examples of particular solutions, successes and problems of the theory.