Pulsations in close binaries from the BRITE point of view

TL;DR

This study uses BRITE photometry to investigate pulsations in close binary systems, finding low-amplitude pulsations in a few cases but limited by small sample size.

Contribution

It provides initial observational insights into pulsations in close binaries using space-based photometry, highlighting the need for larger datasets.

Findings

Pulsations detected in three close binary systems

Pulsation amplitudes are very low

Small sample size limits definitive conclusions

Abstract

Using BRITE photometric data for several close binary systems we address the problem of damping pulsations in close binary systems due to proximity effects. Because of small number statistics, no firm conclusion is given, but we find pulsations in three relatively close binaries. The pulsations in these binaries have, however, very low amplitudes.