19 papers
Results from the first spectropolarimetric survey of Dor pulsators
J. Labadie-Bartz, R. Ouazzani, C. Neiner +8
Context. Magnetic fields can have an important influence on stellar structure and evolution. In intermediate-mass (A- and F-type) stars, there are many known stars with directly me…
The birth of Be star disks III. SPH models of localised mass ejections
A. C. Rubio, A. C. Carciofi, D. Baade +4
Classical Be stars exhibit mass ejection events that feed their viscous decretion disks. Recent TESS space photometry and simultaneous spectroscopy revealed that these flickers are…
Wildly Oscillating Stars -- Unexplained dense ridge-like frequency agglomerations in A and F type pulsators
V. Antoci, J. Labadie-Bartz, M. Swiech +14
We investigate the origin of the dense, ridge-like frequency clusters observed in a subset of A and F type pulsating stars, which we refer to as `wildly oscillating' stars (WOS). T…
Near-core magnetic field strengths inferred from gravity modes in intermediate-mass stars
Oliver Durfeldt-Pedros, Victoria Antoci, Daniel Lecoanet +2
In this work, we derive upper limits for the strength of the near-core magnetic field in intermediate-mass stars, since high-order g-modes can be fully suppressed by a critical mag…
Determining the incidence rate of magnetic Scuti candidates with CoRoT
Gautam Paul, Coralie Neiner, Claude Catala +1
Scuti stars are pulsating stars constituting the Scuti instability strip in the Hertzsprung-Russell (HR) diagram, which consists of A and F stars. They are in the transit…
Configuration of the Tau system constrained by multi-technique observations
M. Brož, P. Doležal, D. Vokrouhlický +8
Tau is one of the most compact multiple stellar systems, which is sufficiently close (67 pc) to be constrained by all kinds of observations. To better constrain its current co…