66 citations · 247 across the 11 of their papers we have counts for
11 papers
Magnetically driven outflows in 3D common-envelope evolution of massive stars
Marco Vetter, Friedrich K. Roepke, Fabian R. N. Schneider +7
Recent three-dimensional magnetohydrodynamical simulations of the common-envelope interaction revealed the self-consistent formation of bipolar magnetically driven outflows launche…
NLTE spectral modelling for a carbon-oxygen and helium white-dwarf merger as a Ca-rich transient candidate
F. P. Callan, A. Holas, J. Morán-Fraile +7
We carry out NLTE (non local thermodynamic equilibrium) radiative transfer simulations to determine whether explosion during the merger of a carbon-oxygen (CO) white dwarf (WD) wit…
From spherical stars to disk-like structures: 3D common-envelope evolution of massive binaries beyond inspiral
M. Vetter, F. K. Roepke, F. R. N. Schneider +4
Three-dimensional simulations usually fail to cover the entire dynamical common-envelope phase of gravitational wave progenitor systems due to the vast range of spatial and tempora…
Large-scale ordered magnetic fields generated in mergers of helium white dwarfs
Rüdiger Pakmor, Ingrid Pelisoli, Stephen Justham +9
Stellar mergers are one important path to highly magnetised stars. Mergers of two low-mass white dwarfs may create up to every third hot subdwarf star. The merging process is usual…
Faint calcium-rich transient from the double-detonation of a carbon-oxygen white dwarf star
J. Moran-Fraile, A. Holas, F. K. Roepke +2
We have computed a three-dimensional hydrodynamic simulation of the merger between a massive () helium white dwarf (He WD) and a low-mass () carbon-oxyg…
Scalable stellar evolution forecasting: Deep learning emulation vs. hierarchical nearest neighbor interpolation
K. Maltsev, F. R. N. Schneider, F. K. Roepke +5
Many astrophysical applications require efficient yet reliable forecasts of stellar evolution tracks. One example is population synthesis, which generates forward predictions of mo…
Self-consistent MHD simulation of jet launching in a neutron star - white dwarf merger
J. Moran-Fraile, F. K. Roepke, R. Pakmor +4
The merger of a white dwarf (WD) and a neutron star (NS) is a relatively common event that will produce an observable electromagnetic signal. Furthermore, the compactness of these…
Gravitational wave emission from dynamical stellar interactions
Javier Moran-Fraile, Fabian R. N. Schneider, Friedrich K. Roepke +4
We are witnessing the dawn of gravitational wave (GW) astronomy. With currently available detectors, observations are restricted to GW frequencies in the range between ${\sim} 10\,…
Bipolar planetary nebulae from common envelope evolution of binary stars
P. A. Ondratschek, F. K. Roepke, F. R. N. Schneider +5
Asymmetric shapes and evidence for binary central stars suggest a common-envelope origin for many bipolar planetary nebulae. The bipolar components of the nebulae are observed to e…
Common-envelope evolution with an asymptotic giant branch star
C. Sand, S. T. Ohlmann, F. R. N. Schneider +2
Common-envelope phases are decisive for the evolution of many binary systems. Of particular interest are cases with asymptotic giant branch (AGB) primary stars, because they are th…
Formation of sdB-stars via common envelope ejection by substellar companions
M. Kramer, F. R. N. Schneider, S. T. Ohlmann +4
Common envelope (CE) phases in binary systems where the primary star reaches the tip of the red giant branch are discussed as a formation scenario for hot subluminous B-type (sdB)…