The decrease in differential rotation with decreasing stellar mass in a sample of young rapidly rotating main sequence stars
John Barnes (University of St. Andrews)
Andrews Collier Cameron (University of St. Andrews)
By making use of Doppler imaging techniques we present new differential rotation
measurements for stars in the K3V--M2V spectral range.
We show that an homogeneous sample of young rapidly rotating G2V to M2V stars
exhibit a trend towards decreasing latitude dependent rotation with decreasing
mass. The implied increase in the degree of solid body rotation with increasing
relative convection zone depth is particularly pertinent to fluid circulation
and stellar dynamo models.
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