The Magnetic Fields of White Dwarfs in Cataclysmic Variables

TL;DR

This paper investigates the origin of magnetic fields in white dwarfs within cataclysmic variables, supporting the hypothesis that they are generated during common envelope evolution through population synthesis calculations aligned with observations.

Contribution

It provides population synthesis evidence supporting the alpha-omega dynamo hypothesis for magnetic field generation in white dwarfs during common envelope phases.

Findings

Population synthesis results support the dynamo hypothesis.

Magnetic white dwarfs in binaries are consistent with common envelope origin.

Observational data aligns with theoretical predictions.

Abstract

The origin of magnetic fields in isolated and binary white dwarfs has been investigated in a series of recent papers. One proposal is that magnetic fields are generated through an alpha-omega dynamo during common envelope evolution. Here we present population synthesis calculations showing that this hypothesis is supported by observations of magnetic binaries.