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The Li-age correlation: The Sun is unusually Li deficient for its age

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dc.contributor.authorCarlos, Marília
dc.contributor.authorMelendez, J
dc.contributor.authorSpina, L.
dc.contributor.authordos Santos, L.
dc.contributor.authorBedell, M.
dc.contributor.authorRamirez, Ivan
dc.contributor.authorAsplund, Martin
dc.contributor.authorBean, Jacob
dc.contributor.authorYong, David
dc.contributor.authorGalarza, Jhon Yana
dc.contributor.authorAlves-Brito, A
dc.date.accessioned2022-05-04T23:43:45Z
dc.date.available2022-05-04T23:43:45Z
dc.date.issued2019
dc.date.updated2020-12-27T07:25:18Z
dc.description.abstractThis work aims to examine in detail the depletion of lithium in solar twins to better constrain stellar evolution models and investigate its possible connection with exoplanets. We employ spectral synthesis in the region of the asymmetric 6707.75 Å Li I line for a sample of 77 stars plus the Sun. As in previous works based on a smaller sample of solar twins, we find a strong correlation between Li depletion and stellar age. In addition, for the first time we show that the Sun has the lowest Li abundance in comparison with solar twins at similar age (4.6 ± 0.5 Gyr). We compare the lithium content with the condensation temperature slope for a subsample of the best solar twins and determine that the most lithium-depleted stars also have fewer refractory elements. We speculate whether the low lithium content in the Sun might be related to the particular configuration of our Solar system.en_AU
dc.description.sponsorshipThis study was financed in part by the Coordenac¸ao de ˜ Aperfeic¸oamento de Pessoal de N´ıvel Superior – Brasil (CAPES) – Finance Code 001. JM is thankful for the support of Fundac¸ao de ˜ Amparo a Pesquisa do Estado de S ` ao Paulo (FAPESP, 2014/18100- ˜ 4, 2018/04055-8) and Conselho Nacional de Desenvolvimento Cient´ıfico e Tecnologico (CNPq, Bolsa de Produtividade). LAdS ´ acknowledges the financial support from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (project FOUR ACES; grant agreement No. 724427).en_AU
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.issn0035-8711en_AU
dc.identifier.urihttp://hdl.handle.net/1885/264527
dc.language.isoen_AUen_AU
dc.provenancehttps://v2.sherpa.ac.uk/id/publication/24618..."The Published Version can be archived in an Institutional Repository" from SHERPA/RoMEO site (as at 5/05/2022). This article has been accepted for publication in [Monthly Notices of the Royal Astronomical Society] ©: 2019 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.en_AU
dc.publisherOxford University Pressen_AU
dc.rights© 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Societyen_AU
dc.sourceMonthly Notices of the Royal Astronomical Societyen_AU
dc.subjecttechniques: spectroscopicen_AU
dc.subjectSun: abundancesen_AU
dc.subjectstars: abundancesen_AU
dc.subjectstars: evolutionen_AU
dc.subjectplanetary systemsen_AU
dc.subjectstars: solar-typeen_AU
dc.titleThe Li-age correlation: The Sun is unusually Li deficient for its ageen_AU
dc.typeJournal articleen_AU
dcterms.accessRightsOpen Accessen_AU
local.bibliographicCitation.issue3en_AU
local.bibliographicCitation.lastpage4059en_AU
local.bibliographicCitation.startpage4052en_AU
local.contributor.affiliationCarlos, Marília, Universidade de Sao Pauloen_AU
local.contributor.affiliationMelendez, J, Universidade de São Pauloen_AU
local.contributor.affiliationSpina, L., Monash Universityen_AU
local.contributor.affiliationdos Santos, L., Observatoire de l’Universite de Geneveen_AU
local.contributor.affiliationBedell, M., Flatiron Instituteen_AU
local.contributor.affiliationRamirez, Ivan, Tacoma Community Collegeen_AU
local.contributor.affiliationAsplund, Martin, College of Science, ANUen_AU
local.contributor.affiliationBean, Jacob, University of Chicagoen_AU
local.contributor.affiliationYong, David, College of Science, ANUen_AU
local.contributor.affiliationGalarza, Jhon Yana, Universidade de São Pauloen_AU
local.contributor.affiliationAlves-Brito, A, Universidade Federal do Rio Grandeen_AU
local.contributor.authoruidAsplund, Martin, u4042723en_AU
local.contributor.authoruidYong, David, u3207952en_AU
local.description.notesImported from ARIESen_AU
local.identifier.absfor020110 - Stellar Astronomy and Planetary Systemsen_AU
local.identifier.absfor030607 - Transport Properties and Non-Equilibrium Processesen_AU
local.identifier.absfor020109 - Space and Solar Physicsen_AU
local.identifier.absseo970103 - Expanding Knowledge in the Chemical Sciencesen_AU
local.identifier.absseo970102 - Expanding Knowledge in the Physical Sciencesen_AU
local.identifier.ariespublicationu3102795xPUB3469en_AU
local.identifier.citationvolume485en_AU
local.identifier.doi10.1093/mnras/stz681en_AU
local.identifier.scopusID2-s2.0-85067000013
local.publisher.urlhttp://mnras.oxfordjournals.org/en_AU
local.type.statusPublished Versionen_AU

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