A Multi-observing-technique Study of the Dynamical Evolution of the Viscous Disk around the Be Star $ω$ CMa

no code implementations • 8 Feb 2021 • Mohammad R. Ghoreyshi, Alex C. Carciofi, Carol E. Jones, Daniel M. Faes, Dietrich Baade, Thomas Rivinius

The observed emission lines of Be stars originate from a circumstellar Keplerian disk that are generally well explained by the Viscous Decretion Disk model.

Solar and Stellar Astrophysics

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

no code implementations • 11 Dec 2020 • Jonathan Labadie-Bartz, Dietrich Baade, Alex C. Carciofi, Amanda Rubio, Thomas Rivinius, Camilla C. Borre, Christophe Martayan, Robert J. Siverd

An isolated feature exists at 7. 57 d$^{-1}$ and, together with the strongest peaks in the second and third groups ordered by increasing frequency ($g2$ and $g3$), is the only one detected in all three TESS sectors.

Solar and Stellar Astrophysics