Where are the<i>r</i>‐Modes of Isentropic Stars?
Where are the<i>r</i>‐Modes of Isentropic Stars?
Almost none of the r-modes ordinarily found in rotating stars exist, if the star and its perturbations obey the same one-parameter equation of state; and rotating relativistic stars with one-parameter equations of state have no pure r-modes at all, no modes whose limit, for a star with zero angular velocity, …