Constraints on primordial magnetic fields from CMB distortions in the axiverse
arXiv:1308.0314 · doi:10.1103/PhysRevD.88.125024
Abstract
Measuring spectral distortions of the cosmic microwave background (CMB) is attracting considerable attention as a probe of high energy particle physics in the cosmological context, since PIXIE and PRISM have recently been proposed. In this paper, CMB distortions due to resonant conversions between CMB photons and light axion like particles (ALPs) are investigated, motivated by the string axiverse scenario which suggests the presence of a plenitude of light axion particles. Since these resonant conversions depend on the strength of primordial magnetic fields, constraints on CMB distortions can provide an upper limit on the product of the photon-ALP coupling constant g and the comoving strength of primordial magnetic fields B. Potentially feasible constraints from PIXIE/PRISM can set a limit g B < 10^{-16} GeV^{-1} nG for ALP mass, m_ϕ< 10^{-14} eV. Although this result is not a direct constraint on g and B, it is significantly tighter than the product of the current upper limits on g and B.
8 pages, 3 figures
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- Spectral distortion constraints on photon injection from low-mass decaying particles
- Axion-Photon Conversion and Effects on 21cm Observation
- Cosmological constraints on decaying axion-like particles: a global analysis
- Tests of the CMB temperature-redshift relation, CMB spectral distortions and why adiabatic photon production is hard
- Schwarzschild scalar wigs: spectral analysis and late time behavior
- Black hole superradiance and polarization-dependent bending of light
- Microwave Spectro-Polarimetry of Matter and Radiation across Space and Time
- Implications of a Primordial Magnetic Field for Magnetic Monopoles, Axions, and Dirac Neutrinos
- Anisotropic cosmic optical background bound for decaying dark matter in light of the LORRI anomaly
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- Late-time magnetogenesis driven by ALP dark matter and dark photon
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- The evolution of primordial magnetic field since its generation
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- CMB constraints on mass and coupling constant of light pseudoscalar particles
- Detecting Axion Dark Matter with Black Hole Polarimetry
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- Cosmologically probing ultra-light particle dark matter using 21 cm signals
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- Shining ALP Dark Radiation
- New Horizons in Cosmology with Spectral Distortions of the Cosmic Microwave Background
- Shaping Dark Photon Spectral Distortions
- The Darkness of Spin-0 Dark Radiation
- Anisotropies in Non-Thermal Distortions of Cosmic Light from Photon-Axion Conversion
- Observing axions through photon ring dimming of black holes
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