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Stellar differential rotation from direct starspot tracking
A. Collier Cameron, J. -F. Donati, M. Semel
On the Sun, the rotation periods of individual sunspots not only trace the latitude dependence of the surface rotation rate, but also provide clues as to the amount of subsurface f…
EXPORT: optical photometry and polarimetry of Vega-type and pre-main sequence stars
R. D. Oudmaijer, J. Palacios, C. Eiroa +1
This paper presents optical UBVRI broadband photo-polarimetry of the EXPORT sample obtained at the 2.5m Nordic Optical Telescope. The database consists of multi-epoch photo-polarim…
Modelling surface magnetic field evolution on AB Doradus due to diffusion and surface differential rotation
G. R. Pointer, M. Jardine, A. Collier Cameron +1
From Zeeman Doppler images of the young, rapidly-rotating K0 dwarf AB Doradus, we have created a potential approximation to the observed radial magnetic field and have evolved it o…