BRITE view of $\sigma$ Scorpii, $\beta$ Cephei-type star studied for over a century

TL;DR

This study combines space-based and ground-based photometry to identify new pulsation modes in the $\sigma$ Scorpii star, providing initial seismic models and expanding understanding of its oscillation spectrum.

Contribution

It is the first to identify seven p and three g modes in $\sigma$ Scorpii using combined BRITE, SMEI, and ground data, advancing seismic modeling of the star.

Findings

Seven p modes and three g modes identified in $\sigma$ Scorpii

First seismic models of the star presented

Enhanced understanding of the star's oscillation spectrum

Abstract

Preliminary results of the analysis of the combined space-based BRITE and SMEI, and ground-based Stroemgren photometry are presented. The BRITE data allowed to find seven p and three g modes in the frequency spectrum of this star; only four p modes were known in this star prior to this study. The first results of seismic modelling are also presented.