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dc.contributor.authorBarnes, J.R.
dc.contributor.authorCollier Cameron, A.
dc.contributor.authorDonati, J-F.
dc.contributor.authorJames, D.J.
dc.contributor.authorMarsden, S.C.
dc.contributor.authorPetit, P.
dc.date.accessioned2007-10-17T15:15:54Z
dc.date.available2007-10-17T15:15:54Z
dc.date.issued2005
dc.identifier.citationBarnes , J R , Collier Cameron , A , Donati , J-F , James , D J , Marsden , S C & Petit , P 2005 , ' The dependence of differential rotation on temperature and rotation ' , Monthly Notices of the Royal Astronomical Society , vol. 357 . https://doi.org/10.1111/j.1745-3933.2005.08587.x
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 136834
dc.identifier.otherPURE UUID: c680e789-7201-4f8a-a56e-599f40aeb77d
dc.identifier.otherdspace: 2299/951
dc.identifier.otherScopus: 79952179433
dc.identifier.urihttp://hdl.handle.net/2299/951
dc.descriptionThe definitive version is available at www.blackwell-synergy.com '. Copyright Blackwell Publishing
dc.description.abstractWe use Doppler imaging techniques to determine the dependence of starspot rotation rates on latitude in an homogeneous sample of young, rapidly-rotating solar analogues. A solar-like differential rotation law is used, where the rotation depends on sin2(θ), where θ is the stellar latitude. By including this term in the image reconstruction process, using starspots as tracers, we are able to determine the magnitude of the shear over more than one rotation cycle. We also consider results from matched filter starspot tracking techniques, where individual starspot rotation rates are determined. In additionwe have re-analysed published results and present a new measurement for the K3 dwarf, Speedy Mic. A total of 10 stars of spectral type G2 - M2 are considered. We find a trend towards decreasing surface differential rotation with decreasing effective temperature. The implied approach to solid body rotation with increasing relative convection zone depth implies that the dynamo mechanism operating in low-mass stars may be substantially different from that in the Sun.en
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.rightsOpen
dc.titleThe dependence of differential rotation on temperature and rotationen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dcterms.dateAccepted2005
rioxxterms.versionofrecordhttps://doi.org/10.1111/j.1745-3933.2005.08587.x
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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