A model for CMB anisotropies on large angular scales

Abstract

We investigate the possibility that a low-temperature, low-frequency anomaly in the black-body spectrum, as it emerges when enlarging the Standard Model's gauge-group factor U(1)${}_Y$ to SU(2) (Yang-Mills scale $\sim 10^{-4}$ eV), explains the discrepancy between the Local Group's velocity as directly observed and as inferred by assuming a purely kinematic origin of the CMB dipole. This discrepancy determines the kinetic term for temperature fluctuations in our model action. Upon subtracting the dipole contribution this model can then be used to predict the low multipoles with $l\ge 2$ in the CMB temperature-temperature correlation and to reinvestigate the issue of statistical isotropy.

v2: 21 pages, 13 figures, changes in and addition of text, correction of unit in Fig. 8

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Cited by in corpus (10)

• CMB Temperature Anisotropy from Broken Spatial Isotropy due to an Homogeneous Cosmological Magnetic Field
• Lorentz-violating contributions of the Carroll-Field-Jackiw model to the CMB anisotropy
• Thermal photon dispersion law and modified black-body spectra
• SU(2) Yang-Mills Theory: Waves, Particles, and Quantum Thermodynamics
• Low-frequency line temperatures of the CMB
• Modification of black-body radiance at low temperatures and frequencies
• Frequency-redshift relation of the Cosmic Microwave Background
• Cosmological parameters from Planck data in SU(2)${}_{\mathrm{CMB}}$, their local $\Lambda$CDM values, and the modified photon Boltzmann equation
• An SU(2) gauge principle for the Cosmic Microwave Background: Perspectives on the Dark Sector of the Cosmological Model
• Our Peculiar Motion Inferred from Number Counts of Mid Infra Red AGNs and the Discordance Seen with the Cosmological Principle