New Calculations of Stellar Wind Torques

TL;DR

This paper uses numerical simulations to study how stellar wind torques depend on observable parameters, revealing that the relationships differ significantly from previous models used in stellar spin evolution.

Contribution

It provides new power-law dependencies of stellar wind torque on observable parameters, challenging existing models.

Findings

Torque dependence on parameters is significantly different from prior models.

Numerical simulations reveal new power-law relationships.

Results impact models of stellar spin evolution.

Abstract

Using numerical simulations of magnetized stellar winds, we carry out a parameter study to find the dependence of the stellar wind torque on observable parameters. We find that the power-law dependencies of the torque on parameters is significantly different than what has been used in all spin evolution models to date.