Rotation periods and ages of solar analogs and solar twins revealed by the kepler mission

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dc.contributor.authorCosta, Jefferson Soares da
dc.contributor.authorNascimento, José Dias do
dc.contributor.authorGarcia, R. A.
dc.contributor.authorMathur, S.
dc.contributor.authorAnthony, F.
dc.contributor.authorBarnes, S. A.
dc.contributor.authorMeibom, S.
dc.contributor.authorCastro, Matthieu Sebastien
dc.contributor.authorSalabert, D.
dc.contributor.authorCeillier, T.
dc.date.accessioned2020-12-15T20:11:32Z
dc.date.available2020-12-15T20:11:32Z
dc.date.issued2014-08-01
dc.description.resumoA new sample of solar analogs and twin candidates has been constructed and studied, paying particular attention to their light curves from NASA’s Kepler mission. This Letter aims to assess their evolutionary status, derive their rotation and ages, and identify those which are solar analogs or solar twin candidates. We separate out the subgiants that compose a large fraction of the asteroseismic sample, and which show an increase in the average rotation period as the stars ascend the subgiant branch. The rotation periods of the dwarfs, ranging from 6 to 30 days and averaging 19 days, allow us to assess their individual evolutionary states on the main sequence and to derive their ages using gyrochronology. These ages are found to be in agreement with a correlation coefficient of r = 0.79 with independent asteroseismic ages, where available. As a result of this investigation, we are able to identify 34 stars as solar analogs and 22 of them as solar twin candidatespt_BR
dc.identifier.citationNASCIMENTO JÚNIOR., J.-D.; GARCÍA, R. A.; MATHUR, S.; ANTHONY, F. ; BARNES, S. A. ; MEIBOM, S. ; da Costa, J. S. ; Castro, M. ; SALABERT, D. ; CEILLIER, T.. Rotation periods and ages of solar analogs and solar twins revealed by the kepler mission. The Astrophysical Journal. Letters, v. 790, p. L23, 2014. Disponível em: https://iopscience.iop.org/article/10.1088/2041-8205/790/2/L23. Acesso em: 07 out 2020. https://doi.org/10.1088/2041-8205/790/2/L23pt_BR
dc.identifier.doi10.1088/2041-8205/790/2/L23
dc.identifier.issn2041-8205
dc.identifier.issn2041-8213
dc.identifier.urihttps://repositorio.ufrn.br/handle/123456789/31006
dc.languageenpt_BR
dc.publisherIOP Publishingpt_BR
dc.rightsAttribution 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/br/*
dc.subjectStars: evolution – starspt_BR
dc.subjectFundamental parameters – starspt_BR
dc.subjectRotation – starspt_BR
dc.subjectSolar-type – Sunpt_BR
dc.subjectFundamental parameterspt_BR
dc.titleRotation periods and ages of solar analogs and solar twins revealed by the kepler missionpt_BR
dc.typearticlept_BR

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