Derives perturbation equations for Bianchi spacetimes in Newtonian gauge and computes density contrasts for EdS and Bianchi I models.
D., Klöckner H.-R., Schwarz D
6 Pith papers cite this work. Polarity classification is still indexing.
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Progenitor age corrections applied to Pantheon+ data shift the monopole q0 to positive values (deceleration) while the local dipole remains unchanged.
Derives a unified partial differential equation for perturbations in Bianchi cosmologies and computes the CMB power spectrum for a toy Bianchi V model.
Reassessment of the CatWISE2020 quasar dipole with comprehensive simulations lowers the anomaly significance from 4.9σ to 3.27–3.63σ but leaves it unexplained by clustering or mask effects alone.
Bayesian tension analysis shows Planck CMB dipole in >5σ disagreement with CatWISE infrared sources and moderate-to-strong disagreement with radio surveys NVSS and RACS, with evidence for shared astrophysical signals in some catalogs.
Larger sample of 244 GRBs with Combo correlation shifts best-fit anisotropy longitude by 54° from Pantheon-only result and deviates >1σ in hemisphere method, unlike smaller A118 sample, indicating potential to reduce fake signals from inhomogeneous distributions.
citing papers explorer
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Fundamental Cosmic Anisotropy and its Ramifications II: Perturbations in Bianchi spacetimes, and fixed in the Newtonian gauge
Derives perturbation equations for Bianchi spacetimes in Newtonian gauge and computes density contrasts for EdS and Bianchi I models.
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Exploring the CMB in Anisotropic Universes
Derives a unified partial differential equation for perturbations in Bianchi cosmologies and computes the CMB power spectrum for a toy Bianchi V model.