Echoes from the Cosmos: A Study of Massive Pulsating Stars

A study by Xiang-dong Shi and colleagues examined 155 massive O- and B-type pulsating stars using data from TESS, LAMOST, and Gaia. They identified two main types: Slowly Pulsating B (SPB) stars and β Cephei (BCEP) stars, mapping their pulsations and positions on evolutionary diagrams. Their findings reveal distinct frequency patterns and relationships between pulsation periods, luminosities, and temperatures, advancing our understanding of massive star evolution.