56 citations · 223 across the 9 of their papers we have counts for
9 papers
Heavy sterile neutrinos in stellar core-collapse
Tomasz Rembiasz, Martin Obergaulinger, Manuel Masip +3
We perform spherically symmetric simulations of the core collapse of a single progenitor star of zero age main sequence mass with two models of hea…
An HLLC Riemann Solver for Resistive Relativistic Magnetohydrodynamics
S. Miranda-Aranguren, M. A. Aloy, T. Rembiasz
We present a new approximate Riemann solver for the augmented system of equations of resistive relativistic magnetohydrodynamics (RRMHD) that belongs to the family of Harten-Lax-va…
Magnetorotational Instability in Core-Collapse Supernovae
Tomasz Rembiasz, Martin Obergaulinger, Jérôme Guilet +3
We discuss the relevance of the magnetorotational instability (MRI) in core-collapse supernovae (CCSNe). Our recent numerical studies show that in CCSNe, the MRI is terminated by p…
How to form a millisecond magnetar? Magnetic field amplification in protoneutron stars
Jerome Guilet, Ewald Mueller, Hans-Thomas Janka +4
Extremely strong magnetic fields of the order of are required to explain the properties of magnetars, the most magnetic neutron stars. Such a strong magnetic fie…
On the measurements of numerical viscosity and resistivity in Eulerian MHD codes
Tomasz Rembiasz, Martin Obergaulinger, Pablo Cerdá-Durán +2
We propose a simple ansatz for estimating the value of the numerical resistivity and the numerical viscosity of any Eulerian MHD code. We test this ansatz with the help of simulati…
Termination of the MRI via parasitic instabilities in core-collapse supernovae: influence of numerical methods
T. Rembiasz, M. Obergaulinger, P. Cerdá-Durán +2
We study the influence of numerical methods and grid resolution on the termination of the magnetorotational instability (MRI) by means of parasitic instabilities in three-dimension…
On the maximum magnetic field amplification by the magnetorotational instability in core-collapse supernovae
Tomasz Rembiasz, Jérôme Guilet, Martin Obergaulinger +3
Whether the magnetorotational instability (MRI) can amplify initially weak magnetic fields to dynamically relevant strengths in core collapse supernovae is still a matter of active…
Termination of the magnetorotational instability via parasitic instabilities in core-collapse supernovae
Tomasz Rembiasz, Martin Obergaulinger, Pablo Cerdá-Durán +2
The magnetorotational instability (MRI) can be a powerful mechanism amplifying the magnetic field in core-collapse supernovae. Whether initially weak magnetic fields can be amplifi…
General Relativistic versus Newtonian: a universality in radiation hydrodynamics
Edward Malec, Tomasz Rembiasz
We compare Newtonian and general relativistic descriptions of the stationary accretion of self-gravitating fluids onto compact bodies. Spherical symmetry and thin gas approximation…