Accretion disk in the eclipsing binary AU Mon

TL;DR

This paper models the eclipsing binary AU Mon with a thick accretion disk, fitting observational data to estimate system parameters and improve understanding of such interacting binaries.

Contribution

It introduces a detailed accretion disk model for AU Mon that aligns well with observations, providing new estimates of system parameters.

Findings

Model fits observed light curves accurately

Estimated physical parameters of the binary components

Derived properties of the accretion disk

Abstract

We analyze the CoRoT and V-passband ground-based light curves of the interacting close binary AU Mon, assuming that there is a geometrically and optically thick accretion disk around the hotter and more massive star, as inferred from photometric and spectroscopic characteristics of the binary. Our model fits the observations very well and provides estimates for the orbital elements and physical parameters of the components and of the accretion disk.