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Correction to: The cosmic dipole in the Quaia sample of quasars: a Bayesian analysis.

Authors :
Mittal, Vasudev
Oayda, Oliver T
Lewis, Geraint F
Source :
Monthly Notices of the Royal Astronomical Society. Jun2024, Vol. 530 Issue 4, p4763-4764. 2p.
Publication Year :
2024

Abstract

This document is a correction to a previous paper titled "The cosmic dipole in the Quaia sample of quasars: a Bayesian analysis." The correction addresses an error in the calculation of the distribution of spectral indices in the original paper. The correction provides the corrected equations and figures to replace the incorrect ones in the original work. The correction also impacts the relative Bayesian evidences of different hypotheses, which are presented in tables in the document. Based on the tables provided, the conclusions of the original work have been slightly altered. The relative ordering of each model in terms of evidential power remains the same, with the kinematic dipole (model M6) being the prevailing model. However, the support for M6 compared to the next-favored model, M4, is slightly reduced. The conclusions in section 6.3 of the original work need to be replaced, as the choice of prior has an impact on the results. The Quaia sample still strongly favors a dipole aligning with the direction of the CMB dipole, but the amplitude is not as decisive. Future research is needed to further investigate this matter. The authors acknowledge Nathan Secrest for pointing out an error in their original work and thank the European Space Agency for providing data. [Extracted from the article]

Details

Language :
English
ISSN :
00358711
Volume :
530
Issue :
4
Database :
Academic Search Index
Journal :
Monthly Notices of the Royal Astronomical Society
Publication Type :
Academic Journal
Accession number :
177399657
Full Text :
https://doi.org/10.1093/mnras/stae1057