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dc.contributor.authorChuen Chan, Kwan
dc.contributor.authorFerrero, Ismael
dc.contributor.authorÁvila, Santiago
dc.contributor.authorRoss, Ashley J.
dc.contributor.authorCrocce, Martín
dc.contributor.authorGaztañaga, Enrique
dc.contributor.otherUAM. Departamento de Física Teóricaes_ES
dc.date.accessioned2022-10-05T11:20:25Z
dc.date.available2022-10-05T11:20:25Z
dc.date.issued2022-02-10
dc.identifier.citationMonthly Notices of the Royal Astronomical Society 511.3 (2022): 3965–3982es_ES
dc.identifier.issn0035-8711 (print)es_ES
dc.identifier.issn1365-2966 (online)es_ES
dc.identifier.urihttp://hdl.handle.net/10486/704392
dc.descriptionThis is a pre-copyedited, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The version of record Monthly Notices of the Royal Astronomical Society 511.3 (2022): 3965–3982 is available online at: https://academic.oup.com/mnras/article-abstract/511/3/3965/6526328#no-access-messagees_ES
dc.description.abstractPhotometric data can be analysed using the 3D correlation function ξp to extract cosmological information via e.g. measurement of the Baryon Acoustic Oscillations (BAO). Previous studies modeled ξp assuming a Gaussian photo-z approximation. In this work we improve the modeling by incorporating realistic photo-z distribution. We show that the position of the BAO scale in ξp is determined by the photo-z distribution and the Jacobian of the transformation. The latter diverges at the transverse scale of the separation s⊥, and it explains why ξp traces the underlying correlation function at s⊥, rather than s, when the photo-z uncertainty σz/(1+ z) ≳ 0.02. We also obtain the Gaussian covariance for ξp. Due to photo-z mixing, the covariance of ξp shows strong off-diagonal elements. The high correlation of the data causes some issues to the data fitting. None the less, we find that either it can be solved by suppressing the largest eigenvalues of the covariance or it is not directly related to the BAO. We test our BAO fitting pipeline using a set of mock catalogs. The data set is dedicated for Dark Energy Survey Year 3 (DES Y3) BAO analyses and includes realistic photo-z distributions. The theory template is in good agreement with mock measurement. Based on the DES Y3 mocks, ξp statistic is forecast to constrain the BAO shift parameter α to be 1.001 ± 0.023, which is well consistent with the corresponding constraint derived from the angular correlation function measurements. Thus, ξp offers a competitive alternative for the photometric data analyseses_ES
dc.format.extent21 pag.es_ES
dc.format.mimetypeapplication/pdfes_ES
dc.language.isoenges_ES
dc.publisherRoyal Astronomical Societyes_ES
dc.publisherOxford University Presses_ES
dc.relation.ispartofMonthly Notices of the Royal Astronomical Societyes_ES
dc.rights© 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Societyes_ES
dc.subject.otherCosmology: Observationses_ES
dc.subject.other(Cosmology:) Large-Scale Structure of Universees_ES
dc.titleClustering with general photo-z uncertainties: application to Baryon Acoustic Oscillationses_ES
dc.typearticlees_ES
dc.subject.ecienciaFísicaes_ES
dc.relation.publisherversionhttps://doi.org/10.1093/mnras/stac340es_ES
dc.identifier.doi10.1093/mnras/stac340es_ES
dc.identifier.publicationfirstpage3965es_ES
dc.identifier.publicationissue3es_ES
dc.identifier.publicationlastpage3982es_ES
dc.identifier.publicationvolume511es_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/FP7/713366/EU//InterTalentumes_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/776247/EU//EWCes_ES
dc.relation.projectIDGobierno de España. ESP2017-89838-C3-1-Res_ES
dc.relation.projectIDGobierno de España. PGC2018-094773-B-C33es_ES
dc.relation.projectIDGobierno de España. PGC2018-102021-B-I00es_ES
dc.relation.projectIDGobierno de España. SEV-2016-0588es_ES
dc.relation.projectIDGobierno de España. SEV-2016-0597es_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/FP7/240672/EU//COGSes_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/FP7/291329/EU//TESTDEes_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/FP7/306478/EU//COSMICDAWNes_ES
dc.type.versioninfo:eu-repo/semantics/acceptedVersiones_ES
dc.rights.accessRightsopenAccesses_ES
dc.facultadUAMFacultad de Cienciases_ES
dc.institutoUAMInstituto de Física Teórica (IFT)es_ES


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