Can Rossby waves explain the cyclic magnetic activity of the Sun and solar-type stars?

TL;DR

This paper explores whether Rossby waves in the laminar convection layer of the Sun and solar-type stars can explain their magnetic activity cycles, linking stellar parameters to magnetic phenomena.

Contribution

It proposes a model where Rossby waves generate the primary magnetic field, explaining the relationship between activity cycle duration and stellar temperature.

Findings

Rossby waves are formed in the laminar convection layer.

These waves generate the primary poloidal magnetic field.

The model explains the correlation between activity cycle length and star temperature.

Abstract

Magnetic activity is a global property of the Sun; the complex processes of solar activity are connected with the solar magnetic fields. For solar-type stars and the Sun magnetic activity depends on the physical parameters of the star. In this article we study the relationships between the duration of activity cycle and effective temperature for solar-type stars and the Sun. We've tried to explain these relationships due to the existence of layer of laminar convection near the bottom of the convective zone of the star. In this layer the Rossby waves are formed. They generate the primary poloidal magnetic field, which is the source of energy of the complex phenomena of magnetic activity.