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Fundamental physics with ESPRESSO

2022-10Artigo científico Acesso aberto
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dc.contributor.authorda Fonseca, Vítor
dc.contributor.authorBarreiro, Tiago
dc.contributor.authorNunes, Nelson J.
dc.contributor.authorCristiani, Stefano
dc.contributor.authorCupani, Guido
dc.contributor.authorD'Odorico, Valentina
dc.contributor.authorLeite, Ana C. O.
dc.contributor.authorMarques, Catarina M. J.
dc.contributor.authorMartins, Carlos J. A. P.
dc.contributor.authorMilaković, Dinko
dc.contributor.authorMolaro, Paolo
dc.contributor.authorMurphy, Michael T.
dc.contributor.authorSchmidt, Tobias M.
dc.contributor.authorAbreu, Manuel
dc.contributor.authorAdibekyan, Vardan
dc.contributor.authorCabral, Alexandre
dc.contributor.authorDi Marcantonio, Paolo
dc.contributor.authorGonzález Hernández, Jonay I.
dc.contributor.authorPalle, Enric
dc.contributor.authorPepe, Francesco A.
dc.contributor.authorRebolo, Rafael
dc.contributor.authorSantos, Nuno C.
dc.contributor.authorSousa, Sérgio G.
dc.contributor.authorSozzetti, Alessandro
dc.contributor.authorMascareño, Alejandro Suárez
dc.contributor.authorOsorio, Maria Rosa Zapatero
dc.contributor.institutionDF – Departamento de Física
dc.contributor.pblEDP Sciences
dc.date.accessioned2023-03-15T22:33:40Z
dc.date.available2023-03-15T22:33:40Z
dc.date.issued2022-10
dc.descriptionThis work was financed by FEDER–Fundo Europeu de Desenvolvimento Regional funds through the COMPETE 2020–Operational Programme for Competitiveness and Internationalisation (POCI), and by Portuguese funds through FCT – Fundação para a Ciência e a Tecnologia under projects POCI-01-0145-FEDER-028987. MTM acknowledges the support of the Australian Research Council through Future Fellowship grant FT180100194. The INAF authors acknowledge financial support of the Italian Ministry of Education, University, and Research with PRIN 201278X4FL and the “Progetti Premiali” funding scheme. TMS also acknowledges the support from the Swiss National Science Foundation (SNSF) and the University of Geneva. M-RZO acknowledges funding under project PID2019-109522GB-C51 of the Spanish Ministerio de Ciencia e Investigación. ASM and JIGH acknowledge financial support from the Spanish Ministry of Science and Innovation (MICIN) project PID2020-117493GB-I00. ASM also acknowledges financial support from the Spanish Ministry of Science and Innovation (MICINN) under 2018 Juan de la Cierva program IJC2018-035229-I, as well as from the Government of the Canary Islands project ProID2020010129. Publisher Copyright: ©
dc.description.abstractContext. The spectrograph ESPRESSO recently obtained a limit on the variation of the fine-structure constant, α, through measurements along the line of sight of a bright quasar with a precision of 1.36 ppm at 1σ level. This imposes new constraints on cosmological models with a varying α. We assume such a model where the electromagnetic sector is coupled to a scalar field dark energy responsible for the current acceleration of the Universe. We parametrise the variation of α with two extra parameters, one defining the cosmological evolution of the quintessence component and the other fixing the coupling with the electromagnetic field. Aims. The objective of this work is to constrain these parameters with both astrophysical and local probes. We also carried out a comparative analysis of how each data probe may constrain our parametrisation. Methods. We performed a Bayesian analysis by comparing the predictions of the model with observations. The astrophysical datasets are composed of quasar spectra measurements, including the latest ESPRESSO data point, as well as Planck observations of the cosmic microwave background. We combined these with local results from atomic clocks and the MICROSCOPE experiment. Results. The constraints placed on the quintessence parameter are consistent with a null variation of the field, and are therefore compatible with a δ CDM cosmology. The constraints on the coupling to the electromagnetic sector are dominated by the Eötvös parameter local bound. Conclusions. More precise measurements with ESPRESSO will be extremely important to study the cosmological evolution of α as it probes an interval of redshift not accessible to other types of observations. However, for this particular model, current available data favour a null variation of α resulting mostly from the strong MICROSCOPE limits.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent9
dc.format.extent1827043
dc.identifier.doi10.1051/0004-6361/202243795
dc.identifier.issn0004-6361
dc.identifier.otherPURE: 55894238
dc.identifier.otherPURE UUID: 47beb02f-af70-4e5a-9eb6-d5c46b8e61ff
dc.identifier.otherScopus: 85139145612
dc.identifier.otherWOS: 000864367100003
dc.identifier.urihttp://hdl.handle.net/10362/150645
dc.identifier.urlhttps://www.scopus.com/pages/publications/85139145612
dc.language.isoeng
dc.peerreviewedyes
dc.relationFunding Information: info:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FFIS-AST%2F28987%2F2017/PT
dc.relationinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FFIS-AST%2F0054%2F2021/PT
dc.relationinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/EXPL%2FFIS-AST%2F1368%2F2021/PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04434%2F2020/PT
dc.relationInstitute of Astrophysics and Space Sciences
dc.relationInstitute of Astrophysics and Space Sciences
dc.relationinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/CERN%2FFIS-PAR%2F0037%2F2019/PT
dc.relationSpacetime ripples in the dark gravitational Universe
dc.relationinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FFIS-OUT%2F29048%2F2017/PT
dc.subjectDark energy
dc.subjectAstronomy and Astrophysics
dc.subjectSpace and Planetary Science
dc.titleFundamental physics with ESPRESSOen
dc.title.subtitleConstraining a simple parametrisation for varyingen
dc.typejournal article
degois.publication.titleAstronomy and Astrophysics
degois.publication.volume666
dspace.entity.typePublication
oaire.awardNumberPTDC/FIS-AST/0054/2021
oaire.awardNumberEXPL/FIS-AST/1368/2021
oaire.awardNumberUIDB/04434/2020
oaire.awardNumberUIDP/04434/2020
oaire.awardNumberCERN/FIS-PAR/0037/2019
oaire.awardNumberPTDC/FIS-OUT/29048/2017
oaire.awardTitleInstitute of Astrophysics and Space Sciences
oaire.awardTitleInstitute of Astrophysics and Space Sciences
oaire.awardTitleSpacetime ripples in the dark gravitational Universe
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FFIS-AST%2F0054%2F2021/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/EXPL%2FFIS-AST%2F1368%2F2021/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04434%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04434%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/CERN%2FFIS-PAR%2F0037%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FFIS-OUT%2F29048%2F2017/PT
oaire.fundingStream3599-PPCDT
oaire.fundingStream3599-PPCDT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream3599-PPCDT
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