Differential rotation of stars from spot transit mapping: dependence on rotation period and effective temperature

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dc.contributor.authorAraujo A.
dc.contributor.authorValio A.
dc.date.accessioned2025-04-01T06:38:20Z
dc.date.available2025-04-01T06:38:20Z
dc.date.issued2023
dc.description.abstract© The Author(s), 2024.Just like the Sun, other stars also exhibit differential rotation. Currently, the rotation profile of a star that hosts a transiting planet can be estimated if during a transits, the planet occults a spot on the photosphere of the star, causing slight variations in its light curve. By detecting the same spot during a later transit, the stellar rotation period at that latitude is determined. Here, we present the results of differential rotation for 48 stars, 13 from the spot transit mapping method, while the remaining 35 stars from other techniques. The results show that the differential rotation is correlated with the stellar mean rotation period for fast rotating stars and strongly anti-correlated for slow rotators. The transition occuring at rotation period of 5 days. On the other hand, the differential shear increases with effective temperature for fast rotating stars, but the correlation is lost for the slow rotators.
dc.description.firstpage63
dc.description.issuenumberS365
dc.description.lastpage69
dc.description.volume19
dc.identifier.doi10.1017/S1743921324000206
dc.identifier.issnNone
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/40458
dc.relation.ispartofProceedings of the International Astronomical Union
dc.rightsAcesso Restrito
dc.subject.otherlanguageDifferential Rotation
dc.subject.otherlanguageStarspot
dc.subject.otherlanguageStellar rotation
dc.titleDifferential rotation of stars from spot transit mapping: dependence on rotation period and effective temperature
dc.typeArtigo de evento
local.scopus.citations0
local.scopus.eid2-s2.0-85217140730
local.scopus.updated2025-04-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85217140730&origin=inward
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