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The low multipoles in the Pantheon+SH0ES data
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The low multipoles in the Pantheon+SH0ES data
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In previous work we have shown that the dipole in the low redshift supernovae of the Pantheon+SH0ES data does not agree with the one inferred from the velocity of the solar system as obtained from CMB data. We interpreted this as the presence of significant bulk velocities. In this paper we study the monopole, dipole and quadrupole in the Pantheon+SH0ES data. We find that in addition to the dipole also both, the monopole and the quadrupole are detected with high significance. They are of similar amplitudes as the bulk flow. While the monopole is only significant at very low redshift, the quadrupole even increases with redshift.
Forward citations
Cited by 2 Pith papers
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Redshift Dipoles from Non-Geodesic Observer Congruences in Covariant Cosmology
Non-geodesic observer congruences in covariant cosmology produce redshift dipoles with non-trivial distance dependence beyond standard kinematic boosts.
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Updates on dipolar anisotropy in local measurements of the Hubble constant from Cosmicflows-4
Local Hubble constant anisotropy in Cosmicflows-4 data is primarily attributed to peculiar velocities and survey structure rather than cosmic-scale isotropy violation, with limited implications for the Hubble tension.
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