A nontrivial footprint of standard cosmology in the future observations of low–frequency gravitational waves

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dc.article.number118
dc.catalogadoraba
dc.contributor.authorAlfaro, J.
dc.contributor.authorGamonal San Martín, Mauricio
dc.date.accessioned2023-07-10T13:33:10Z
dc.date.available2023-07-10T13:33:10Z
dc.date.issued2019
dc.description.abstractRecent research show that the cosmological components of the Universe should influence on the propagation of Gravitational Waves (GWs) and even it has been proposed a new way to measure the cosmological constant using Pulsar Timing Arrays (PTAs). However, these results have considered very particular cases (e.g. a de Sitter Universe or a mixing with non-relativistic matter). In this work we propose an extension of these results, using the Hubble constant as the natural parameter that includes all the cosmological information and studying its effect on the propagation of GWs. Using linearized gravity we considered a mixture of perfect fluids permeating the spacetime and studied the propagation of GWs within the context of the ΛCDM model. We found from numerical simulations that the timing residual of local pulsars should present a distinguishable peak depending on the local value of the Hubble constant. As a consequence, when assuming the standard ΛCDM model, our result predicts that the region of maximum timing residual is determined by the redshift of the source. This framework represents an alternative test for the standard cosmological model, and it can be used to facilitate the measurements of gravitational wave by ongoing PTAs projects. Copyright © 2019, The Authors. All rights reserved.
dc.fechaingreso.objetodigital2023-07-11
dc.fuente.origenORCID
dc.identifier.doi10.1007/s10714-020-02771-2
dc.identifier.eissn1572-9532
dc.identifier.issn0001-7701
dc.identifier.urihttps://doi.org/10.1007/s10714-020-02771-2
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/74112
dc.information.autorucInstituto de Física; Alfaro Solís, Jorge Luis; 0000-0002-2091-1325; 49962
dc.information.autorucInstituto de Física; Gamonal San Martín, Mauricio; S/I; 232200
dc.language.isoen
dc.nota.accesoContenido parcial
dc.pagina.final31
dc.pagina.inicio1
dc.revistaGeneral Relativity and Gravitationes_ES
dc.rightsacceso restringido
dc.subjectGravitational waveses_ES
dc.subjectPulsar timing arrayses_ES
dc.subjectCosmologyes_ES
dc.subject.ddc510
dc.subject.deweyMatemática física y químicaes_ES
dc.titleA nontrivial footprint of standard cosmology in the future observations of low–frequency gravitational waves
dc.typeartículo
dc.volumen52
sipa.codpersvinculados49962
sipa.codpersvinculados232200
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