Search
Now showing items 1-3 of 3
Limits on a Gravitational Field Dependence of the Proton{Electron Mass Ratio from H2 in White Dwarf Stars
(American Physical SocietyPhysical Review Letters, 2014-09-18)
Spectra of molecular hydrogen (H2) are employed to search for a possible proton-to-electron
mass ratio (μ) dependence on gravity. The Lyman transitions of H2, observed with the Hubble
Space Telescope towards white dwarf ...
Redshifting of cosmological black bodies in BSBM varying-alpha theories
(APSPHYSICAL REVIEW D, 2014-12-04)
We analyse the behaviour of black-body radiation in theories of electromagnetism which allow
the electron charge and the fine structure constant to vary in space and time. We show that such
theories can be expressed as ...
Maximum Tension: with and without a cosmological constant
(OUPMonthly Notices of the Royal Astronomical Society, 2014-12-04)
We discuss various examples and ramifications of the conjecture
that there exists a maximum force (or tension) in general relativistic
systems. We contrast this situation with that in Newtonian gravity,
where no maximum ...