3 papers
astro-ph.SR2026
Eclipsing time variations in close binaries produced by azimuthal dynamo waves
Felipe H. Navarrete, Dominik R. G. Schleicher, Petri J. Käpylä +1
The nature of eclipsing time variations (ETVs) in post-common-envelope binaries (PCEBs) is still unknown. Circumbinary planets routinely fail the test of time and the Applegate mec…
astro-ph.SR2025
Shaping core dynamos in A-type stars: The role of dipolar fossil fields
J. P. Hidalgo, P. J. Käpylä, D. R. G Schleicher +2
Large-scale magnetic fields of Ap/Bp stars are stable over long timescales and have typically simple dipolar geometries, leading to the idea of a fossil origin. These stars are als…
astro-ph.SR2024
Magnetohydrodynamic simulations of A-type stars: Long-term evolution of core dynamo cycles
J. P. Hidalgo, P. J. Käpylä, D. R. G Schleicher +2
Early-type stars have convective cores due to a steep temperature gradient produced by the CNO cycle. These cores can host dynamos, and the generated magnetic fields can be relevan…