# COMMUNICATIONS / MITTEILUNGEN

## I.K. Csada

## The Differential Rotation and the Large-scale Meridional
Motion of the Stars

No. 22
Budapest, 1949

## Abstract

The present paper contains a discussion on the rotation of the stars
considering the meridional currents but neglecting the electromagnetic effects.
Assuming that the whole interior of the star is in turbulent state, the author applies
the adiabatical equation of state. Differential equations are deduced for the vector
potential producting the velocity of the meridional current and differential equations
are deduced for rotational velocity and its vorticity. Their approximate solutions
are reached by a series of spherical harmonics. As it is shown in the discussion,
if we consider hydrodynamical effects only, the velocity of the meridional current
is to be given together with the stellar structure. We have to conclude, that after
having considered the electromagnetic effects, the velocity of the meridional
current can be deduced from the strength of the magnetic-field, respectively from
the angular velocity, if we suppose a relation existing between the last two.
ADS

[PDF] (provided by the NASA ADS)

[Meta-data]