PreprintCC BY-NC-SA 4.0HAL
The cosmic multipoles: a consistency test for the Szekeres cosmological model
Abstract
An important property of the quasi-spherical Szekeres cosmological model appears to be widely misunderstood in the literature. In this paper, the claim that the matter density can be fully decomposed on a given 2-shell into a dipole superposed on a monopole is shown to be inaccurate and exact propositions are substituted. Then, the multipole decompositions of three different quantities linked to the mass density are displayed and proposed to constrain the Szekeres parameters with observed data. A test of the axial symmetry assumption, together with that of an on-axis observer, using a property of the angular coefficients is also suggested.
Related
- Differential Polarization Calibration: A Consistency Test for Cosmic Birefringence
- Assessing the consistency of the CPL dark-energy model with cosmological data: Simulation-calibrated neural posterior disagreement
- Type Ia supernova population machine – I. A unified cosmological simulation–binary synthesis framework establishing non-universal delay-time distributions and cosmic progenitor-channel dominance crossover
- Consistency between cosmological and standard siren observations in evolving dark energy
- Cosmic birefringence from a stiff axion field and its cosmological implications
BibTeX
@misc{celerier2026cosmic,
title = {{The cosmic multipoles: a consistency test for the Szekeres cosmological model}},
author = {Marie-Noëlle Célérier},
howpublished = {HAL},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.01154},
eprint = {2609.01154},
archivePrefix = {arXiv},
url = {https://hal.science/hal-05742655v1},
note = {CC BY-NC-SA 4.0},
}
RIS
TY - UNPB
TI - The cosmic multipoles: a consistency test for the Szekeres cosmological model
AU - Marie-Noëlle Célérier
PY - 2026
DA - 2026/09/08
PB - HAL
DO - 10.48550/arxiv.2609.01154
UR - https://hal.science/hal-05742655v1
AB - An important property of the quasi-spherical Szekeres cosmological model appears to be widely misunderstood in the literature. In this paper, the claim that the matter density can be fully decomposed on a given 2-shell into a dipole superposed on a monopole is shown to be inaccurate and exact propositions are substituted. Then, the multipole decompositions of three different quantities linked to the mass density are displayed and proposed to constrain the Szekeres parameters with observed data. A test of the axial symmetry assumption, together with that of an on-axis observer, using a property of the angular coefficients is also suggested.
ER -