Short-term variability and mass loss in Be stars VI. Frequency groups in $\gamma$ Cas detected by TESS

Jonathan Labadie-Bartz, Dietrich Baade, Alex C. Carciofi +5

In photometry of $\gamma$ Cas (B0.5 IVe) from the SMEI and BRITE-Constellation satellites, indications of low-order non-radial pulsation have recently been found, which would establish…