On the relation between atmospheric and internal motions in an astrophysical object

1.Frame-dragging affects the flow in the atmosphere of an astrophysical object.2.The geostrophic approximation is used for the flow equations.3.The post-newtonian approximation to the space–time metric is adopted.4.Magma motions in the core affects the axis of rotation of cyclonic flows.

The equations of the flow of a perfect fluid in a relativistic spacetime are considered, as well as their first-order approximations when the velocity is small as compared with the speed of light. In particular we study how frame-dragging effects in the atmosphere of a massive object may yield some clues as to the motion of fluids within the object.