标题： 较低主序星的差速自转 显示英文标题

标题： Differential rotation on the lower main sequence

摘要： 我们通过求解运动方程和平均场形式下的对流热输运方程，计算了主序星中F、G、K和M型光谱的差旋率。 对于每种光谱类型，旋转速率被改变以研究表面剪切对这一参数的依赖性。 所得出的旋转模式都是太阳型的。 水平剪切实际上强烈依赖于有效温度，而对旋转率的依赖较弱。 经向流更强烈地依赖于旋转率，并且在非常慢和非常快的旋转情况下方向不同。 显示英文摘要

摘要： We compute the differential rotation of main sequence stars of the spectral types F, G, K, and M by solving the equation of motion and the equation of convective heat transport in a mean-field formulation. For each spectral type the rotation rate is varied to study the dependence of the surface shear on this parameter. The resulting rotation patterns are all solar-type. The horizontal shear turns out to depend strongly on the effective temperature and only weakly on the rotation rate. The meridional flow depends more strongly on the rotation rate and has different directions in the cases of very slow and very fast rotation, respectively.