10 citations · 20 across the 8 of their papers we have counts for
8 papers · 1 filter
Global 3D simulations of convection and dynamos in Red Giants
Carolina Ortiz-Rodríguez, Petri Käpylä, Juan Pablo Hidalgo +2
Understanding the internal dynamics of red giants is essential for studying angular momentum transport and magnetic field generation during stellar evolution. We present three-dime…
Mean-field interpretation of star-in-a-box simulations of red giants
Carolina A. Ortiz-Rodríguez, Axel Brandenburg, Petri J. Käpylä
Context: The origin of magnetic fields and the dynamo mechanism in red giants are still not fully understood. Aims: We aim to interpret the dynamo behaviour of global 3D simulation…
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…
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…
Simulations of dynamo action in slowly rotating M dwarfs: Dependence on dimensionless parameters
C. A. Ortiz-Rodríguez, P. J. Käpylä, F. H. Navarrete +4
The aim of this study is to explore the magnetic and flow properties of fully convective M dwarfs as a function of rotation period Prot and magnetic Reynolds ReM and Prandlt number…
Origin of magnetism in early-type stars
J. P. Hidalgo, P. J. Käpylä, C. A. Ortiz-Rodríguez +3
According to our understanding of stellar evolution, early-type stars have radiative envelopes and convective cores due to a steep temperature gradient produced by the CNO cycle. S…
Simulations of fully convective M dwarfs: dynamo action with varying magnetic Prandtl numbers
Carolina A. Ortiz-Rodríguez, Dominik R. G. Schleicher, Petri J. Käpylä +1
M dwarfs are low-mass main-sequence stars, the most numerous type of stars in the solar neighbourhood, which are known to have significant magnetic activity. The aim of this work i…
Origin of eclipsing time variations in Post-Common-Envelope binaries: role of the centrifugal force
Felipe H. Navarrete, Dominik R. G. Schleicher, Petri J. Käpylä +2
Eclipsing time variations (ETVs) in post-common-envelope binaries (PCEBs) were proposed to be due to the time-varying component of the stellar gravitational quadrupole moment. This…