17 citations · 70 across the 12 of their papers we have counts for
12 papers
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…
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…
A lanthanide-rich kilonova in the aftermath of a long gamma-ray burst
Yu-Han Yang, Eleonora Troja, Brendan O'Connor +24
Observationally, Kilonovae are astrophysical transients powered by the radioactive decay of nuclei heavier than iron, synthesized in the merger of two compact objects. Over the fir…
Effects of the centrifugal force in stellar dynamo simulations
Felipe H. Navarrete, Petri J. Käpylä, Dominik R. G. Schleicher +1
The centrifugal force is often omitted from simulations of stellar convection either for numerical reasons or because it is assumed to be weak compared to the gravitational force.…
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…
Origin of eclipsing time variations: Contributions of different modes of the dynamo-generated magnetic field
Felipe H. Navarrete, Petri J. Käpylä, Dominik R. G. Schleicher +2
The possibility to detect circumbinary planets and to study stellar magnetic fields through eclipsing time variations (ETVs) in binary stars has sparked an increase of interest in…
Magneto-hydrodynamical origin of eclipsing time variations in post-common-envelope binaries for solar mass secondaries
Felipe H. Navarrete, Dominik R. G. Schleicher, Petri J. Käpylä +3
Eclipsing time variations have been observed for a wide range of binary systems, including post-common-envelope binaries. A frequently proposed explanation, apart from the possibil…
Long-term variations in the X-ray activity of HR 1099
V. Perdelwitz, F. H. Navarrete, J. Zamponi +6
Although timing variations in close binary systems have been studied for a long time, their underlying causes are still unclear. A possible explanation is the so-called Applegate m…
The Applegate mechanism in Post-Common-Envelope Binaries: Investigating the role of rotation
F. H. Navarrete, D. R. G. Schleicher, J. Zamponi +1
Eclipsing time variations (ETVs) are observed in many close binary systems. In particular, for several post-common-envelope binaries (PCEBs) that consist of a white dwarf and a mai…