S. Preval

activity

20102020

most citedLimits on the dependence of the fine-structure constant on gravitational potential from white-dwarf spectra

80 citations · 317 across the 19 of their papers we have counts for

collaborators

Showing 2014Show all

3 papers · 1 filter

astro-ph.SR2014★ 2 cited

Do the constants of nature couple to strong gravitational fields?

S. P. Preval, M. A. Barstow, J. B. Holberg +5

Recently, white dwarf stars have found a new use in the fundamental physics community. Many prospective theories of the fundamental interactions of Nature allow traditional constan…

astro-ph.SR2014★ 2 cited

A possible solution to the Lyman/Balmer line problem in hot DA white dwarfs

S. P. Preval, M. A. Barstow, N. R. Badnell +2

Arguably, the best method for determining the effective temperature ( $T_{eff}$ ) and surface gravity (log $g$ ) of a DA white dwarf is by fitting the Hydrogen Lyman and Balm…

gr-qc2014★ 31 cited

Limits on a Gravitational Field Dependence of the Proton--Electron Mass Ratio from H $_{2}$ in White Dwarf Stars

Julija Bagdonaite, Edcel J. Salumbides, Simon P. Preval +4

Spectra of molecular hydrogen (H $_{2}$ ) are employed to search for a possible proton-to-electron mass ratio ( $μ$ ) dependence on gravity. The Lyman transitions of H $_{2}$ , observed with…

Do the constants of nature couple to strong gravitational fields?

A possible solution to the Lyman/Balmer line problem in hot DA white dwarfs

Limits on a Gravitational Field Dependence of the Proton--Electron Mass Ratio from H2​ in White Dwarf Stars

Limits on a Gravitational Field Dependence of the Proton--Electron Mass Ratio from H $_{2}$ in White Dwarf Stars