TESS light curves of low-mass detached eclipsing binaries

TL;DR

This paper uses TESS light curves and radial velocity data to improve the measurement of stellar parameters for low-mass detached eclipsing binaries, including new results for an unpublished system.

Contribution

It provides high-precision light curves and refined stellar parameters for low-mass DEBs, including the first data for a previously unpublished system.

Findings

Enhanced accuracy of stellar parameters for low-mass DEBs

Identification of a new low-mass detached eclipsing binary

Improved methods combining TESS photometry with radial velocity data

Abstract

We present high-precision light curves of several M- and K-type, active detached eclipsing binaries (DEBs), recorded with 2-minute cadence by the Transiting Exoplanet Survey Satellite (TESS). Analysis of these curves, combined with new and literature radial velocity (RV) data, allows to vastly improve the accuracy and precision of stellar parameters with respect to previous studies of these systems. Results for one previously unpublished DEB are also presented.