New Suns in the Cosmos II: Differential rotation in Kepler Sun-like stars

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dc.contributor.authorDas Chagas M.L.
dc.contributor.authorBravo J.P.
dc.contributor.authorCosta A.D.
dc.contributor.authorFerreira Lopes C.E.
dc.contributor.authorSilva Sobrinho R.
dc.contributor.authorPaz-Chinchon F.
dc.contributor.authorLeao I.C.
dc.contributor.authorValio A.
dc.contributor.authorde Freitas D.B.
dc.contributor.authorCanto Martins B.L.
dc.contributor.authorLanza A.F.
dc.contributor.authorde Medeiros J.R.
dc.date.accessioned2024-03-13T00:51:43Z
dc.date.available2024-03-13T00:51:43Z
dc.date.issued2016
dc.description.abstract© 2017 The Authors.The present study reports the discovery of Sun-like stars, namely main-sequence stars with Teff, log g and rotation periods Prot similar to solar values, presenting evidence of surface differential rotation (DR). An autocorrelation of the time series was used to select stars presenting photometric signal stability from a sample of 881 stars with light curves collected by the Kepler space-borne telescope, in which we have identified 17 stars with stable signals. A simple two-spot model together with a Bayesian information criterion were applied to these stars in the search for indications of DR; in addition, for all 17 stars, it was possible to compute the spot rotation period P, the mean values of the individual spot rotation periods and their respective colatitudes, and the relative amplitude of the DR.
dc.description.firstpage1624
dc.description.issuenumber2
dc.description.lastpage1631
dc.description.volume463
dc.identifier.doi10.1093/MNRAS/STW2026
dc.identifier.issn1365-2966
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/35891
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.rightsAcesso Restrito
dc.subject.otherlanguageStars: rotation
dc.subject.otherlanguageStars: solar-type
dc.subject.otherlanguageStarspots
dc.titleNew Suns in the Cosmos II: Differential rotation in Kepler Sun-like stars
dc.typeArtigo
local.scopus.citations12
local.scopus.eid2-s2.0-85025161384
local.scopus.subjectAuto correlation
local.scopus.subjectDifferential rotation
local.scopus.subjectMain sequence stars
local.scopus.subjectPhotometrics
local.scopus.subjectRotation period
local.scopus.subjectStars: Rotation
local.scopus.subjectStars: solar types
local.scopus.subjectStarspots
local.scopus.subjectSurface differentials
local.scopus.subjectTimes series
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85025161384&origin=inward
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