Probing variation of the fine-structure constant in runaway dilaton models using Strong Gravitational Lensing and Type Ia Supernovae

Abstract

In order to probe a possible time variation of the fine-structure constant ($\alpha$), we propose a new method based on Strong Gravitational Lensing and Type Ia Supernovae observations. By considering a class of dilaton runaway models, where $\frac{\Delta \alpha }{\alpha }=-\gamma \ln (1+z)$, we obtain constraints on $\frac{\Delta \alpha }{\alpha }$ at the level $\gamma \approx 10^{-2}$ ($\gamma$ captures the physical properties of the model). Since the data set covers the redshift range $0.075\le z\le 2.2649$, the constraints derived here provide independent bounds on a possible time variation of $\alpha$ at low, intermediate and high redshifts.

9 pages, 3 figures, 1 table - Accepted in The European Physical Journal C

References in corpus (21)

• The Structure & Dynamics of Massive Early-type Galaxies: On Homology, Isothermality and Isotropy inside one Effective Radius
• Evading Equivalence Principle Violations, Cosmological and other Experimental Constraints in Scalar Field Theories with a Strong Coupling to Matter
• Search for post-merger gravitational waves from the remnant of the binary neutron star merger GW170817
• Spatial variation in the fine-structure constant -- new results from VLT/UVES
• Towards an automated tool to evaluate the impact of the nuclear modification of the gluon density on quarkonium, D and B meson production in proton-nucleus collisions
• The Sloan Lens ACS Survey. XIII. Discovery of 40 New Galaxy-Scale Strong Lenses
• Cosmological parameters from strong gravitational lensing and stellar dynamics in elliptical galaxies
• Breaking of the equivalence principle in the electromagnetic sector and its cosmological signatures
• Constraining cosmic curvature by using age of galaxies and gravitational lenses
• Search for a Variation of the Fine Structure around the Supermassive Black Hole in Our Galactic Center
• Late-time cosmology of scalar-tensor theories with universal multiplicative coupling between the scalar field and the matter Lagrangian
• Constraining Fundamental Physics with Future CMB Experiments
• Revisiting Studies of the Statistical Property of a Strong Gravitational Lens System and Model-independent Constraint on the Curvature of the Universe
• Constraining the Variation of the Fine Structure Constant with Observations of Narrow Quasar Absorption Lines
• Evolution of the fine-structure constant in runaway dilaton models
• CMB constraints on the fine structure constant
• Stability of fundamental couplings: a global analysis
• Filling the Mass Gap: How Kilonova Observations can Unveil the Nature of the Compact Object Merging with the Neutron Star
• Non-uniqueness in quasar absorption models and implications for measurements of the fine structure constant
• Probing cosmic acceleration by strong gravitational lensing systems
• Observables in theories with a varying fine structure constant

Cited by in corpus (11)

• The minimally extended Varying Speed of Light (meVSL)
• Constraints on variation of fine structure constant from joint SPT-SZ and XMM-Newton observations
• Constraining a possible time-variation of the speed of light along with the fine-structure constant using strong gravitational lensing and Type Ia supernovae observations
• Probing the time variation of fine structure constant using galaxy clusters and quintessence model
• The investigation of low frequency dilaton generation
• A test of the evolution of gas depletion factor in galaxy clusters using strong gravitational lensing systems
• Non-parametric reconstruction of the fine structure constant with galaxy clusters
• Gravitational lens time-delay as a probe of a possible time variation of the fine-structure constant
• An investigation of a varying G through Strong Lensing and SNe Ia observations
• A Joint Analysis of Strong Lensing and Type Ia Supernovae to Determine the Hubble Constant
• Investigating a Possible Variation of the Gravitational Constant Through Gas Mass Fraction Measurements and Type Ia Supernovae Observations