Is there further evidence for spatial variation of fundamental constants?

Abstract

The detection of a spatial variation of the fine-structure constant, alpha, based on study of quasar absorption systems has recently been reported. The physics that causes this alpha-variation should have other observable manifestations, and this motivates us to look for complementary astrophysical effects. In this paper we propose a method to test whether spatial variation of fundamental constants existed during the epoch of big bang nucleosynthesis. Using existing measurements of primordial deuterium abundance we find very weak indications that such a signature might exist, but the paucity of measurements precludes any firm conclusion. We also examine existing quasar absorption spectra data that are sensitive to variation of the electron-to-proton mass ratio, mu, and x = (alpha^2 mu g_p) for spatial variation.

6 pages, 1 figure

References in corpus (14)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Data Processing, Sky Maps, and Basic Results
• Improved Dark Energy Constraints from ~100 New CfA Supernova Type Ia Light Curves
• Deuterium Abundance in the Most Metal-Poor Damped Lyman alpha System: Converging on Omega_baryons
• Strong Limit on a Variable Proton-to-Electron Mass Ratio from Molecules in the Distant Universe
• Enhanced sensitivity to time-variation of m_p/m_e in the inversion spectrum of ammonia
• Revision of VLT/UVES constraints on a varying fine-structure constant
• Dependence of nuclear binding on hadronic mass variation
• Comment on "Limits on the Time Variation of the Electromagnetic Fine-Structure Constant in the Low Energy Limit from Absorption Lines in the Spectra of Distant Quasars"
• Primordial nucleosynthesis as a probe of fundamental physics parameters
• A new measure of Delta alpha/alpha at redshift z = 1.84 from very high resolution spectra of Q1101-264
• A survey for redshifted molecular and atomic absorption lines I
• Probing variations in fundamental constants with radio and optical quasar absorption-line observations
• Cosmic Parallax: possibility of detecting anisotropic expansion of the universe by very accurate astrometry measurements
• Relationships between the HI 21-cm line strength, MgII equivalent width and metallicity in damped Lyman-alpha absorption systems

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• Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies
• Stability of fundamental couplings: a global analysis
• Consistency tests of the stability of fundamental couplings and unification scenarios
• Astronomical and laboratory searches for space-time variation of fundamental constants
• Nucleosynthesis Predictions and High-Precision Deuterium Measurements
• Atomic and Molecular Absorption in Redshifted Radio Sources
• Thomson scattering: One rate to rule them all
• New Constraints on Spatial Variations of the Fine Structure Constant from Clusters of Galaxies
• Non-perturbative Treatments of the Bosonic String and the Axion with Cosmological Implications
• Fine Structure Constant, Domain Walls, and Generalized Uncertainty Principle in the Universe