%0 Journal Article
%T Starspots on Young Solar-Type Stars
%A Carolyn Brown
%A Brad Carter
%A Stephen Marsden
%A Ian Waite
%J Physics
%D 2013
%I arXiv
%R 10.1017/S1743921314001938
%X Doppler Imaging of starspots on young solar analogues is a way to investigate the early history of solar magnetic activity by proxy. Doppler images of young G-dwarfs have yielded the presence of large polar spots, extending to moderate latitudes, along with measurements of the surface differential rotation. The differential rotation measurement for one star (RX J0850.1- 7554) suggests it is possibly the first example of a young G-type dwarf whose surface rotates as almost a solid body, in marked contrast to the differential rotation of other rapidly rotating young G-dwarfs and the present-day Sun. Overall, our Doppler imaging results show that the young Sun possessed a fundamentally different dynamo to today.
%U http://arxiv.org/abs/1310.6517v1