The ancient main-sequence solar proxy HIP 102152 unveils the activity and rotational fate of our Sun

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dc.contributor.authorLorenzo-Oliveira D.
dc.contributor.authorMelendez J.
dc.contributor.authorPonte G.
dc.contributor.authorGalarza J.Y.
dc.date.accessioned2024-03-12T23:49:47Z
dc.date.available2024-03-12T23:49:47Z
dc.date.issued2020
dc.description.abstract© 2020 Oxford University Press. All rights reserved.We present a detailed analysis of the possible future Sun's rotational evolution scenario based on the 8-Gyr-old solar twin HIP 102152. Using HARPS high-cadence observations (and TESS light curves), we analysed the modulation of a variety of activity proxies (Ca II, H I Balmer, and Na I lines), finding a strong rotational signal of 35.7 ± 1.4 d (log Bfactor ∼ 70, in the case of Ca II K line). This value matches with the theoretical expectations regarding the smooth rotational evolution of the Sun towards the end of the main sequence, validating the use of gyrochronology after solar age.
dc.description.firstpage61
dc.description.issuenumber1
dc.description.lastpage65
dc.description.volume495
dc.identifier.doi10.1093/MNRASL/SLAA057
dc.identifier.issn1745-3933
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/35083
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society: Letters
dc.rightsAcesso Restrito
dc.subject.otherlanguageStars: activity
dc.subject.otherlanguageStars: chromospheres
dc.subject.otherlanguageStars: fundamental parameters
dc.subject.otherlanguageStars: rotation
dc.subject.otherlanguageStars: solar-type
dc.subject.otherlanguageSun: rotation
dc.titleThe ancient main-sequence solar proxy HIP 102152 unveils the activity and rotational fate of our Sun
dc.typeArtigo
local.scopus.citations11
local.scopus.eid2-s2.0-85091788889
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85091788889&origin=inward
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