Magnetic Fields from Compensated Isocurvature Perturbations
arXiv:2304.03299 · doi:10.1103/PhysRevD.107.103536
Abstract
Compensated isocurvature perturbations (CIPs) are perturbations to the primordial baryon density that are accompanied by dark-matter-density perturbations so that the total matter density is unperturbed. Such CIPs, which may arise in some multi-field inflationary models, can be long-lived and only weakly constrained by current cosmological measurements. Here we show that the CIP-induced modulation of the electron number density interacts with the electron-temperature fluctuation associated with primordial adiabatic perturbations to produce, via the Biermann-battery mechanism, a magnetic field in the post-recombinaton Universe. Assuming the CIP amplitude saturates the current BBN bounds, this magnetic field can be stronger than at and stronger by an order of magnitude than that (produced at second order in the adiabatic-perturbation amplitude) in the standard cosmological model, and thus can serve as a possible seed for galactic dynamos.
arXiv comment7 pages, 2 figures, version accepted for publication in PRD
References in corpus (59)
- Planck 2018 results. X. Constraints on inflation
- Big Bang Nucleosynthesis: 2015
- Origin of Galactic and Extragalactic Magnetic Fields
- The primordial density perturbation in the curvaton scenario
- Nongaussian Isocurvature Perturbations from Inflation
- One percent determination of the primordial deuterium abundance
- Cosmic Background Anisotropies in CDM Cosmology
- Non-Gaussianity of the primordial perturbation in the curvaton model
- Signatures of Supersymmetry from the Early Universe
- On Soft Limits of Inflationary Correlation Functions
- HyRec: A fast and highly accurate primordial hydrogen and helium recombination code
- Effective field theory approach to quasi-single field inflation and effects of heavy fields
- Non-Gaussianity as a Particle Detector
- Quasi-Single Field Inflation with Large Mass
- Search for Spatial Extension in High-Latitude Sources Detected by the Fermi Large Area Telescope
- Observational constraints on the curvaton model of inflation
- Curvature Perturbation Spectrum in Two-field Inflation with a Turning Trajectory
- Growth of Linear Perturbations before the Era of the First Galaxies
- Heavy-Lifting of Gauge Theories By Cosmic Inflation
- Relaxing the Bounds on Primordial Magnetic Seed Fields
- Partially Massless Fields During Inflation
- Equilateral non-Gaussianity from heavy fields
- CMB spectral distortions from small-scale isocurvature fluctuations
- Quasi Single Field Inflation in the non-perturbative regime
- Correlated mixtures of adiabatic and isocurvature cosmological perturbations
- A lower bound on intergalactic magnetic fields from time variability of 1ES 0229+200 from MAGIC and Fermi/LAT observations
- Generation of Primordial Magnetic Fields on Linear Over-density Scales
- Seeing Higher-Dimensional Grand Unification In Primordial Non-Gaussianities
- Robust Velocity-induced Acoustic Oscillations at Cosmic Dawn
- Non-Gaussian Enhancements of Galactic Halo Correlations in Quasi-Single Field Inflation
- A Standard Ruler at Cosmic Dawn
- Compensated Isocurvature Perturbations and the Cosmic Microwave Background
- Forecasted 21 cm constraints on compensated isocurvature perturbations
- HYREC-2: a highly accurate sub-millisecond recombination code
- Search for Compensated Isocurvature Perturbations with Planck Power Spectra
- Cosmological Aspects of Spontaneous Baryogenesis
- Baryons do trace dark matter 380,000 years after the big bang: Search for compensated isocurvature perturbations with WMAP 9-year data
- Probing Primordial Magnetic Fields Using Ly-alpha Clouds
- On Possible Variation in the Cosmological Baryon Fraction
- Constraints on Large-Scale Magnetic Fields in the Intergalactic Medium Using Cross-Correlation Methods
- Compensated isocurvature perturbations in the curvaton model
- Cosmological Shapes of Higher-Spin Gravity
- Probing correlated compensated isocurvature perturbations using scale-dependent galaxy bias
- Baryon-CDM isocurvature galaxy bias with IllustrisTNG
- Power Spectra Based Planck Constraints on Compensated Isocurvature, and Forecasts for LiteBIRD and CORE Space Missions
- Do baryons trace dark matter in the early universe?
- Baryons still trace dark matter: probing CMB lensing maps for hidden isocurvature
- Multimessenger Constraints on Intergalactic Magnetic Fields from the Flare of TXS 0506+056
- Kinetic Sunyaev-Zel'dovich tomography with line-intensity mapping
- Large scale distribution of total mass versus luminous matter from Baryon Acoustic Oscillations: First search in the SDSS-III BOSS Data Release 10
- Lensing Bias to CMB Measurements of Compensated Isocurvature Perturbations
- New probe of magnetic fields in the prereionization epoch. I. Formalism
- The Effect of Cosmic Magnetic Fields on the Metagalactic Ionization Background inferred from the Lyman-α Forest
- Probing Compensated Isocurvature with the 21-cm Signal during Cosmic Dawn
- Compensated Isocurvature Perturbations in the Galaxy Power Spectrum
- BAO Modulation as a Probe of Compensated Isocurvature Perturbations
- Exploring compensated isocurvature perturbations with CMB spectral distortion anisotropies
- A new probe of magnetic fields in the pre-reionization epoch: II. Detectability
- Large scale distribution of mass versus light from Baryon Acoustic Oscillations: Measurement in the final SDSS-III BOSS Data Release 12