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        Differential Rotation in Young Low-mass Stars

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        901630.pdf (PDF, 888Kb)
        Author
        Collier Cameron, A.
        Barnes, J.R.
        Kitchatinov, L.
        Donati, J-F.
        Attention
        2299/1477
        Abstract
        Multi-line Doppler imaging methods allow us to image young, rapidly rotating stars brighter than about V = 11.5, with ~ 3 degrees surface resolution. We have recently measured the latitude dependence of the surface rotation rate in three young G and K stars by cross-correlating Doppler images reconstructed from data sets secured several days apart. As a result, new theoretical models of solar and stellar internal rotation can be tested directly against the form, amplitude and spectral-type dependence of differential rotation in both Sun and stars. We present new maps of AB Dor, PZ Tel and RX J1508.6-4423, which all show a solar-like differential rotation pattern and rate of surface shear.
        Publication date
        2001
        Published in
        In: Procs of 11th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun, ASP Conference Series 223
        Other links
        http://hdl.handle.net/2299/1477
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