Asteroseismology of OB stars with hundreds of single snapshot spectra (and a few time-series of selected targets)

TL;DR

This paper explores the potential of using single snapshot spectra to perform asteroseismology on large samples of OB stars, focusing on the role of macroturbulent broadening in stellar oscillations.

Contribution

It proposes a novel approach to asteroseismology using minimal spectral data, highlighting the significance of macroturbulent broadening in massive star analysis.

Findings

Single spectra can provide insights into stellar oscillations.

Macroturbulent broadening is linked to stellar oscillations.

Potential for large-scale asteroseismic studies with minimal data.

Abstract

Imagine we could do asteroseismology of large samples of OB-type stars by using just one spectrum per target. That would be great! But this is probably a crazy and stupid idea. Or maybe not. Maybe we have the possibility to open a new window to investigate stellar oscillations in massive stars that has been in front of us for many years, but has not attracted very much our attention: the characterization and understanding of the so-called macroturbulent broadening in OB-type stars.