Constraints on variation of fine structure constant from joint SPT-SZ and XMM-Newton observations

Abstract

We search for a variation of the electromagnetic fine structure constant ($\alpha \equiv e^2/\hslash c$) using a sample of 58 SZ selected clusters in the redshift range ($0.2<z<1.5$) detected by the South Pole Telescope, along with X-ray measurements using the XMM-Newton observatory. We use the ratio of the integrated SZ Compto-ionization to its X-ray counterpart as our observable for this search. We first obtain a model-independent constraint on $\alpha$ of about 0.7%, using the fact that the aforementioned ratio is constant as a function of redshift. We then look for a logarithmic dependence of $\alpha$ as a function of redshift: $\Delta \alpha /\alpha =-\gamma \ln (1+z)$, as this is predicted by runaway dilaton models. We find that $\gamma$ = $-0.046\pm 0.1$, which indicates that there is no logarithmic variation of $\alpha$ as a function of redshift. We also search for a dipole variation of the fine structure constant using the same cluster sample. We do not find any evidence for such a spatial variation.

arXiv comment12 pages, 4 figures

References in corpus (2)

• Data analysis recipes: Fitting a model to data
• Probing variation of the fine-structure constant in runaway dilaton models using Strong Gravitational Lensing and Type Ia Supernovae

Cited by in corpus (29)

• The minimally extended Varying Speed of Light (meVSL)
• A test of cosmic distance duality relation using SPT-SZ galaxy clusters, Type Ia supernovae, and cosmic chronometers
• A multi-simulation study of relativistic SZ temperature scalings in galaxy clusters and groups
• Search for Lorentz Invariance Violation from stacked Gamma-Ray Burst spectral lag data
• A search for the variation of speed of light using galaxy cluster gas mass fraction measurements
• Testing a varying-$\Lambda$ model for dark energy within Co-varying Physical Couplings framework
• Low redshift calibration of the Amati relation using galaxy clusters
• Astrophysical and Cosmological Searches for Lorentz Invariance Violation
• Search for GeV Gamma-Ray Emission from SPT-SZ selected Galaxy Clusters with 15 years of Fermi-LAT data
• Probing the time variation of fine structure constant using galaxy clusters and quintessence model
• Observational constraints on varying fundamental constants in a minimal CPC model
• A test of constancy of dark matter halo surface density and radial acceleration relation in relaxed galaxy groups
• Variation of the fine structure constant in the light of recent helium abundance measurement
• A model-independent test of the evolution of gas depletion factor for SPT-SZ and Planck ESZ clusters
• Gravitational lens time-delay as a probe of a possible time variation of the fine-structure constant
• A pilot search for MeV gamma-ray emission from five galaxy clusters using archival COMPTEL data
• Search for Dark Matter Annihilation to gamma-rays from SPT-SZ selected Galaxy Clusters
• Galaxy clusters, cosmic chronometers and the Einstein equivalence principle
• Galaxy cluster hydrostatic bias in Kottler spacetime
• Search for GeV gamma-ray emission from SPT-CL J2012-5649 with six years of DAMPE data
• An investigation of a varying G through Strong Lensing and SNe Ia observations
• A Stacked Analysis of GeV Gamma-Ray Emission from SPT-SZ Galaxy Clusters with 16 Years of Fermi-LAT Data
• A test of galaxy cluster fundamental plane for the X-COP sample
• A test of linearity of the ratio of dark matter to baryonic matter in galaxy clusters
• Refining fundamental constants with white dwarfs: machine learning informed constraints on fine-structure constant and proton-to-electron mass ratio
• Current constraints on the minimally extended varying speed of light model through the cosmic distance duality relation
• A MINOT-based Study of Gamma-ray emission from SPT-CL J2012-5649/Abell 3667
• Search for Cosmological time dilation from Gamma-Ray Bursts -- A 2021 status update
• On Generalized Theories of Varying Fine Structure Constant