Differential rotation on early G dwarfs
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Publication date
2007-09-17
Authors
Jeffers, S.V.
Donati, J.F.
Editors
Berdyugina, Svetlana V.
Nagendra, K. N.
Ramelli, Renzo
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Part of book
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Abstract
In this paper we present the latest results in our long-term program to understand how differential rotation depends on fundamental stellar parameters such as spectral type, mass and radius. In this paper we focus on early G dwarf spectral types by presenting our latest surface brightness image and differential rotation measurement for the GOV dwarf HD 171488 (age = 30 to 50 Myr, period = 1.33 d) and compare with the differential rotation measurements obtained using the same techniques for LQ Lup (G2V, 25Myr, p=0.31 d) and R58 (G2V, 35Myr, p=0.57 d).
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Jeffers, S V & Donati, J F 2007, Differential rotation on early G dwarfs. in S V Berdyugina, K N Nagendra & R Ramelli (eds), Solar polarization 5 in honor of Jan Olof Stenflo : proceedings of a workshop held at Centro Stefano Franscini-Monte Verità, Ascona, Switzerland, 17-21 September 2007. Astronomical Society of the Pacific, San Francisco, pp. 523-526.