Transfer matrices for magnetized CMB anisotropies

Abstract

Large-scale magnetic fields can affect scalar cosmological perturbations whose evolution is described in the conformally Newtonian gauge and within the tight coupling approximation. The magnetized curvature perturbations present after matter radiation equality (and prior to decoupling) are computed in terms of an appropriate transfer matrix allowing a general estimate of the Sachs-Wolfe plateau. From the observation that CMB initial conditions should be (predominantly) adiabatic, the contribution of the magnetic field intensity can be constrained.

9 pages

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Cited by in corpus (30)

• Cosmology with inhomogeneous magnetic fields
• Primordial magnetic field limits from cosmological data
• Magnetized CMB observables: a dedicated numerical approach
• Helical Magnetic Fields from Inflation
• Higher order statistics of curvature perturbations in IFF model and its Planck constraints
• Inflation-Produced Magnetic Fields in R^n F^2 and I F^2 models
• Faraday rotation, stochastic magnetic fields and CMB maps
• CMB anisotropies due to cosmological magnetosonic waves
• Tight coupling expansion and fully inhomogeneous magnetic fields
• Magnetogenesis, spectator fields and CMB signatures
• Critical constraint on inflationary magnetogenesis
• Estimating relic magnetic fields from CMB temperature correlations
• CMB anisotropies in the presence of a stochastic magnetic field
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• Parameter dependence of magnetized CMB observables
• Semi-analytical approach to magnetized temperature autocorrelations
• Generalized CMB initial conditions with pre-equality magnetic fields
• A magnetized completion of the $\Lambda$CDM paradigm
• Fluctuations of inflationary magnetogenesis
• Magnetized Quark and Strange Quark Matter in the Spherical Symmetric Space-Time Admitting Conformal Motion
• Large-scale magnetic fields, curvature fluctuations and the thermal history of the Universe
• Probing large-scale magnetism with the Cosmic Microwave Background
• Cosmic polarimetry in magnetoactive plasmas
• Dark energy, integrated Sachs-Wolfe effect and large-scale magnetic fields
• Birefringence, CMB polarization and magnetized B-mode
• Why CMB physics?
• Compressible hydromagnetic nonlinearities in the predecoupling plasma
• Growth rate of matter perturbations as a probe of large-scale magnetism
• Tensor to scalar ratio from single field magnetogenesis
• Magnetization of fluid phonons and large-scale curvature perturbations