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General magneti c field measurement s on solar-lik e stars with different type s of activit y
S.I. Plachinda
a,b

, T.N . Tarasova

a

a Crimean Astrophysical Observatory, Crimea, Ukraine b Isaac Newton Institute of Chile, Crimean Branch

Abstract . W e presen t th e result s o f measurement s o f th e genera l magneti c fields (GMF ) o f Ori , Bo o A an d 61CygA . Th e valu e o f GM F o f 61Cyg A i s simila r t o th e field s o f th e star s Eri , Ori , Bo o A , whic h ar e younge r an d mor e activ e bu t exceed s th e genera l magneti c field o f th e Su n b y a facto r o f 10 . W e suppos e that : 1 ) th e genera l magneti c field reflect s propertie s o f th e primordia l field i n th e radiativ e cor e o f solar-lik e stars ; 2 ) th e interna l globa l magneti c field o f th e 6 1 Cy g A cor e i s stronge r tha n solar .