Magnetic, thermal and rotational evolution of isolated neutron stars

JA Pons, D Viganò - Living Reviews in Computational Astrophysics, 2019 - Springer
The strong magnetic field of neutron stars is intimately coupled to the observed temperature
and spectral properties, as well as to the observed timing properties (distribution of spin …

UV completions, fixing the equations, and nonlinearities in -essence

G Lara, M Bezares, E Barausse - Physical Review D, 2022 - APS
Scalar-tensor theories with first-derivative self-interactions, known as k-essence, may
provide interesting phenomenology on cosmological scales. On smaller scales, however …

Large eddy simulations of magnetized mergers of neutron stars with neutrinos

C Palenzuela, S Liebling, B Miñano - Physical Review D, 2022 - APS
Neutron star mergers are very violent events involving extreme physical processes:
dynamic, strong-field gravity; large magnetic field; very hot, dense matter; and the copious …

Alfvén waves in a partially ionized two-fluid plasma

R Soler, M Carbonell, JL Ballester… - The Astrophysical …, 2013 - iopscience.iop.org
Alfvén waves are a particular class of magnetohydrodynamic waves relevant in many
astrophysical and laboratory plasmas. In partially ionized plasmas the dynamics of Alfvén …

A Simflowny-based finite-difference code for high-performance computing in numerical relativity

C Palenzuela, B Minano, D Vigano… - … and Quantum Gravity, 2018 - iopscience.iop.org
The tremendous challenge of comparing our theoretical models with the gravitational-wave
observations in the new era of multimessenger astronomy requires accurate and fast …

Morphology and dynamics of solar prominences from 3D MHD simulations

J Terradas, R Soler, M Luna, R Oliver… - The Astrophysical …, 2015 - iopscience.iop.org
In this paper we present a numerical study of the time evolution of solar prominences
embedded in sheared magnetic arcades. The prominence is represented by a density …

A Simflowny-based high-performance 3D code for the generalized induction equation

D Viganò, D Martínez-Gómez, JA Pons… - Computer Physics …, 2019 - Elsevier
In the interior of neutron stars, the induction equation regulates the long-term evolution of the
magnetic fields by means of resistivity, Hall dynamics and ambipolar diffusion. Despite the …

Multi-fluid approach to high-frequency waves in plasmas. II. Small-amplitude regime in partially ionized media

D Martínez-Gómez, R Soler… - The Astrophysical …, 2017 - iopscience.iop.org
The presence of neutral species in a plasma has been shown to greatly affect the properties
of magnetohydrodynamic waves. For instance, the interaction between ions and neutrals …

Simflowny: A general-purpose platform for the management of physical models and simulation problems

A Arbona, A Artigues, C Bona-Casas, J Massó… - Computer Physics …, 2013 - Elsevier
Simflowny is a software platform which aims to formalize the main elements of a simulation
flow. It allows users to manage (i) formal representations of physical models based on Initial …

Multi-fluid approach to high-frequency waves in plasmas. III. Nonlinear regime and plasma heating

D Martínez-Gómez, R Soler… - The Astrophysical …, 2018 - iopscience.iop.org
The multi-fluid modeling of high-frequency waves in partially ionized plasmas has shown
that the behavior of magnetohydrodynamic waves in the linear regime is heavily influenced …