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Cosmological Parameters from Planck Data in SU(2) CMB , Their Local ΛCDM Values, and the Modified Photon Boltzmann Equation
- Source :
- Annalen der Physik.
- Publication Year :
- 2023
- Publisher :
- Wiley, 2023.
-
Abstract
- A review of the spatially flat cosmological model SU(2)$_{\rm CMB}$, minimally induced by the postulate that the Cosmic Microwave Background (CMB) is subject to an SU(2) rather than a U(1) gauge principle, is given. Cosmological parameter values, which are determined from the Planck CMB power spectra at small angular scales, are compared to their values in spatially flat $\Lambda$CDM from both local and global extractions. As a global model SU(2)$_{\rm CMB}$ leans towards local $\Lambda$CDM cosmology and is in tension with some global $\Lambda$CDM parameter values. We present spectral antiscreening / screening effects in SU(2)$_{\rm CMB}$ radiance within the Rayleigh-Jeans regime in dependence on temperature and frequency. Such radiance anomalies can cause CMB large-angle anomalies. Therefore, it is pointed out how SU(2)$_{\rm CMB}$ modifies the Boltzmann equation for the perturbations of the photon phase space distribution at low redshift and why this requires to the solve the $\ell$-hierarchy on a comoving momentum grid ($q$-grid) for all $z$.<br />Comment: 9 pages, 7 figures
Details
- ISSN :
- 15213889 and 00033804
- Database :
- OpenAIRE
- Journal :
- Annalen der Physik
- Accession number :
- edsair.doi.dedup.....c6f7ddb0231d30f796c5fefbc923cb1c