dc.contributor.author | Anton, T | |
dc.contributor.author | Clifton, T | |
dc.date.accessioned | 2024-06-06T13:58:55Z | |
dc.date.available | 2024-05-04 | |
dc.date.available | 2024-06-06T13:58:55Z | |
dc.date.issued | 2024-05-29 | |
dc.identifier.citation | Theodore Anton and Timothy Clifton JCAP05(2024)120 | en_US |
dc.identifier.issn | 1475-7516 | |
dc.identifier.uri | https://qmro.qmul.ac.uk/xmlui/handle/123456789/97309 | |
dc.description.abstract | We consider the form of Hubble diagrams that would be constructed by observers in universes that are homogeneous but anisotropic, when averaged over suitably large length-scales. This is achieved by ray-tracing in different directions on the sky in families of exact inhomogeneous cosmological solutions of Einstein's equations, in order to determine the redshifts and luminosity distances that observers in these space-times would infer for distant astrophysical objects. We compare the results of this procedure to the Hubble diagrams that would be obtained by direct use of the large-scale-averaged anisotropic cosmological models, and find that observables calculated in the averaged model closely agree with those obtained from ray-tracing in all cases where a statistical homogeneity scale exists. In contrast, we find that in cosmologies with spaces that contain no statistical homogeneity scale that Hubble diagrams inferred from the averaged cosmological model can differ considerably from those that observers in the space-time would actually construct. We hope that these results will be of use for understanding and interpreting recent observations that suggest that large-scale anisotropy may have developed in the late Universe. | en_US |
dc.format.extent | 120 - 120 | |
dc.publisher | IOP Publishing | en_US |
dc.relation.ispartof | Journal of Cosmology and Astroparticle Physics | |
dc.rights | Published by IOP Publishing Ltd on behalf of Sissa Medialab. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. | |
dc.title | Hubble diagrams in statistically homogeneous, anisotropic universes | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1088/1475-7516/2024/05/120 | |
pubs.issue | 05 | en_US |
pubs.notes | Not known | en_US |
pubs.publication-status | Published | en_US |
pubs.volume | 2024 | en_US |
dcterms.dateAccepted | 2024-05-04 | |
rioxxterms.funder | Default funder | en_US |
rioxxterms.identifier.project | Default project | en_US |
qmul.funder | Astronomy Research at Queen Mary 2020 - 2023::Science and Technology Facilities Council | en_US |