A robust cosmic standard ruler from the cross-correlations of galaxies and dark sirens

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Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversity of Portsmouth-
Autor(es): dc.contributorUniversidade Federal do Espírito Santo (UFES)-
Autor(es): dc.contributorUniversidade Federal do Rio de Janeiro (UFRJ)-
Autor(es): dc.contributorICTP South American Institute for Fundamental Research-
Autor(es): dc.creatorFerri, João-
Autor(es): dc.creatorTashiro, Ian L.-
Autor(es): dc.creatorAbramo, L. R.-
Autor(es): dc.creatorMatos, Isabela-
Autor(es): dc.creatorQuartin, Miguel-
Autor(es): dc.creatorSturani, Riccardo-
Data de aceite: dc.date.accessioned2025-08-21T15:23:40Z-
Data de disponibilização: dc.date.available2025-08-21T15:23:40Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2025-04-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1088/1475-7516/2025/04/008-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/297574-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/297574-
Descrição: dc.descriptionObservations of gravitational waves (GWs) from dark sirens allow us to infer their locations and distances. Galaxies, on the other hand, have precise angular positions but no direct measurement of their distances — only redshifts. The cross-correlation of GWs, which we limit here to binary black hole mergers (BBH), in spherical shells of luminosity distance DL , with galaxies in shells of redshift z, leads to a direct measurement of the Hubble diagram DL (z). Since this standard ruler relies only on the statistical proximity of the dark sirens and galaxies (a general property of large-scale structures), it is essentially model-independent: the correlation is maximal when both redshift and DL shells coincide. We forecast the constraining power of this technique, which we call Peak Sirens, for run 5 (O5) of LIGO-Virgo-KAGRA (LVK), as well as for the third-generation observatories Einstein Telescope and Cosmic Explorer. We employ thousands of full-sky light cone simulations with realistic numbers for the tracers, and include masking by the Milky Way, lensing and inhomogeneous GW sky coverage. We find that the method is not expected to suffer from some of the issues present in other dark siren methods, such as biased constraints due to incompleteness of galaxy catalogs or dependence on priors for the merger rates of BBH. We show that with Peak Sirens, given the projected O5 sensitivity, LVK can measure H 0 with 7% precision by itself, assuming ΛCDM, and 4% precision using external datasets to constrain Ωm . We also show that future third-generation GW detectors can achieve, without external data, sub-percent uncertainties in H 0 assuming ΛCDM, and 3% in a more flexible w 0 wa CDM model. The method also shows remarkable robustness against systematic effects such as the modeling of non-linear structure formation.-
Descrição: dc.descriptionDepartamento de Física Matemática Instituto de Física Universidade de São Paulo, R. do Matão 1371 SP-
Descrição: dc.descriptionInstituto de Física Teórica Universidade Estadual Paulista, SP-
Descrição: dc.descriptionInstitute of Cosmology and Gravitation University of Portsmouth, Burnaby Road-
Descrição: dc.descriptionPPG Cosmo Universidade Federal do Espírito Santo, ES-
Descrição: dc.descriptionInstituto de Física Universidade Federal do Rio de Janeiro, RJ-
Descrição: dc.descriptionObservatório do Valongo Universidade Federal do Rio de Janeiro, RJ-
Descrição: dc.descriptionICTP South American Institute for Fundamental Research, SP-
Descrição: dc.descriptionInstituto de Física Teórica Universidade Estadual Paulista, SP-
Idioma: dc.languageen-
Relação: dc.relationJournal of Cosmology and Astroparticle Physics-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBayesian reasoning-
Palavras-chave: dc.subjectcosmological parameters from LSS-
Palavras-chave: dc.subjectgalaxy surveys-
Palavras-chave: dc.subjectgravitational waves / experiments-
Título: dc.titleA robust cosmic standard ruler from the cross-correlations of galaxies and dark sirens-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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