A new constraint on cosmological variability of the proton-to-electron mass ratio

Abstract

Exotic cosmologies predict variability of the fundamental physical constants over the cosmic time. Using the VLT/UVES high resolution spectra of the quasar Q0347-3819 and unblended electronic - vibrational - rotational lines of the H2 molecule identified at z = 3.025 we test possible changes in the proton - to - electron mass ratio mu_0 = m_p/m_e over the period of 11 Gyr. We obtained a new constraint on the time - averaged variation rate of mu_0 of |d mu /d t /mu_0| < 5 10^{-15} yr^{-1} (1 sigma c.l.). The estimated 1 sigma uncertainty interval of the |Delta mu/mu_0| ratio of about 0.004% implies that since the time when the H2 spectrum was formed at z = 3.025, mu_0 has not changed by more than a few thousands of a percent.

arXiv comment5 pages, 3 figures, a revised version accepted by MNRAS

References in corpus (8)

• Further Evidence for Cosmological Evolution of the Fine Structure Constant
• Molecular hydrogen, deuterium and metal abundances in the damped Ly-alpha system at z = 3.025 toward QSO 0347-3819
• Astrophysical Limits on the Evolution of Dimensionless Physical Constants over Cosmological Time
• Improved constraints on possible variation of physical constants from H I 21cm and molecular QSO absorption lines
• UVES observations of QSO 0000-2620: Argon and Phosphorus abundances in the dust-free damped Ly-alpha system at zabs = 3.3901
• Molecular Hydrogen in the Direction of zeta Ori A
• Testing cosmological variability of the proton-to-electron mass ratio using the spectrum of PKS 0528-250
• A new deuterium abundance measurement from a damped Ly-alpha system at z_abs = 3.025

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