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Assessment of a new sub-grid model for magneto-hydrodynamical turbulence. I. Magnetorotational instability
Miquel Miravet-Tenés, Pablo Cerdá-Durán, Martin Obergaulinger +1
Insufficient numerical resolution of grid-based, direct numerical simulations (DNS) hampers the development of instabilitydriven turbulence at small (unresolved) scales. As an alte…
Core-collapse supernova simulations with reduced nucleosynthesis networks
Gerard Navó, Moritz Reichert, Martin Obergaulinger +1
We present core-collapse supernova simulations including nuclear reaction networks that impact explosion dynamics and nucleosynthesis. The different composition treatment can lead…
Three-dimensional core-collapse supernovae with complex magnetic structures: II. Rotational instabilities and multi-messenger signatures
Matteo Bugli, Jérôme Guilet, Thierry Foglizzo +1
The gravitational collapse of rapidly rotating massive stars can lead to the onset of the low instability within the central proto-neutron star (PNS), which leaves strong…
Magnetorotational supernovae: A nucleosynthetic analysis of sophisticated 3D models
Moritz Reichert, Martin Obergaulinger, Miguel-Angel Aloy +3
Magnetorotational supernovae are a rare type of core-collapse supernovae where the magnetic field and rotation play a central role in the dynamics of the explosion. We present the…
R-process viable outflows are suppressed in global alpha-viscosity models of collapsar disks
Oliver Just, Miguel A. Aloy, Martin Obergaulinger +1
Collapsar disks have been proposed to be rich factories of heavy elements, but the major question of whether their outflows are neutron-rich, and could therefore represent signific…