Evidence for High Eccentricity and Apsidal Motion in the Detached Eclipsing Binary GSC 04052-01378

TL;DR

This study provides evidence of high eccentricity and apsidal motion in the binary star GSC 04052-01378, using observational data to refine its orbital parameters and propose a stellar model fitting the observed characteristics.

Contribution

The paper presents new observational evidence of high eccentricity and apsidal motion in GSC 04052-01378, along with a stellar model that accurately fits the data.

Findings

Eccentricity e = 0.538(6) indicating high orbital eccentricity.

Detection of apsidal motion in the binary system.

Refined light curve parameters consistent with the proposed stellar model.

Abstract

We observed the recently discovered eccentric eclipsing binary GSC 04052-01378 in order to improve the light curve parameters and to find further evidence of its probable high eccentricity and of apsidal motion. Furthermore, we propose a basic stellar model that fits very well the observations of our dataset and where the eccentricity is found to be e = 0.538(6), which corresponds to an high value among this group of binaries.