Zobrazeno 1 - 10
of 281
pro vyhledávání: '"Comer, G. L."'
Publikováno v:
MNRAS 527, 2, 2437 (2024)
The magneto-rotational instability (MRI) - which is due to an interplay between a sheared background and the magnetic field - is commonly considered a key ingredient for developing and sustaining turbulence in the outer envelope of binary neutron sta
Externí odkaz:
http://arxiv.org/abs/2304.13486
In order to extract the precise physical information encoded in the gravitational and electromagnetic signals from powerful neutron-star merger events, we need to include as much of the relevant physics as possible in our numerical simulations. This
Externí odkaz:
http://arxiv.org/abs/2202.01576
We consider a framework for non-ideal magnetohydrodynamics in general relativity, paying particular attention to the physics involved. The discussion highlights the connection between the microphysics (associated with a given equation of state) and t
Externí odkaz:
http://arxiv.org/abs/2108.08732
Autor:
Andersson, N., Comer, G. L. C.
The relativistic fluid is a highly successful model used to describe the dynamics of many-particle systems moving at high velocities and/or in strong gravity. It takes as input physics from microscopic scales and yields as output predictions of bulk,
Externí odkaz:
http://arxiv.org/abs/2008.12069
It is well known that a superfluid rotates by forming an array of quantized vortices. A relativistic formulation for superfluid vortex dynamics is required for a range of problems in astrophysics and cosmology, from neutron star interiors and radio p
Externí odkaz:
http://arxiv.org/abs/1912.03976
The inner crust of a mature neutron star is composed of an elastic lattice of neutron-rich nuclei penetrated by free neutrons. These neutrons can flow relative to the crust once the star cools below the superfluid transition temperature. In order to
Externí odkaz:
http://arxiv.org/abs/1811.09419
We develop an action principle to construct the field equations for a multi-fluid system containing charge-neutral fluids, plasmas, and dissipation (via resistive interactions), by combining the standard, Maxwell action and minimal coupling of the el
Externí odkaz:
http://arxiv.org/abs/1610.00445
We develop a new framework for the modelling of charged fluid dynamics in general relativity. The model, which builds on a recently developed variational multi-fluid model for dissipative fluids, accounts for relevant effects like the inertia of both
Externí odkaz:
http://arxiv.org/abs/1610.00449
We consider a resistive multi-fluid framework from the 3+1 space-time foliation point-of-view, paying particular attention to issues relating to the use of multi-parameter equations of state and the associated inversion from evolved to primitive vari
Externí odkaz:
http://arxiv.org/abs/1610.00448
Autor:
Andersson, N., Comer, G. L.
Publikováno v:
Class. Quantum Grav. 32 (2015) 075008
We present a new variational framework for dissipative general relativistic fluid dynamics. The model extends the convective variational principle for multi-fluid systems to account for a range of dissipation channels. The key ingredients in the cons
Externí odkaz:
http://arxiv.org/abs/1306.3345