Copernican Paradigm beyond FLRW

نویسندگان

چکیده

We present the dipole cosmological principle, i.e., notion that Universe is a Copernican cosmology agrees with cosmic flow. It suits most symmetric paradigm generalizes Friedmann–Lemaître–Robertson–Walker ansatz in context of numerous suggestions have appeared literature for non-kinematic components microwave background dipole. Field equations our “dipole cosmology” are still ODEs, but we now four instead two Friedmann equations. The extra functions can be regarded as additional scale factors break isotropy group from SO(3) to U(1) and “tilt” denotes result an axially isotropic Universe. examined dynamics expansion rate, anisotropic shear, tilt some cases. One important observation flow (tilt) grow while anisotropy (shear) dies down.

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ژورنال

عنوان ژورنال: Symmetry

سال: 2023

ISSN: ['0865-4824', '2226-1877']

DOI: https://doi.org/10.3390/sym15020428