358 citations · 882 across the 24 of their papers we have counts for
9 papers · 1 filter
Generalized Ohm's law for relativistic plasmas
Alejandra Kandus, Christos G. Tsagas
We generalise the relativistic expression of Ohm's law by studying a multi-fluid system of charged species using the 1+3 covariant formulation of general relativistic electrodynami…
On the mean field dynamo with Hall effect
A. Kandus, M. J. Vasconcelos, A. H. Cerqueira
We study in the present paper how Hall effect modifies the quenching process of the electromotive force (e.m.f.) in Mean Field Dynamo (MFD) theories. We write down the evolution eq…
Superadiabatic-type magnetic amplification in conventional cosmology
Christos G. Tsagas, Alejandra Kandus
We consider the evolution of cosmological magnetic fields in FRW models and outline a geometrical mechanism for their superadiabatic amplification on large scales. The mechanism op…
Origin of coherent magnetic fields in high redshift objects
A. Kandus, R. Opher, S. R. M. Barros
Large scale strong magnetic fields in galaxies are generally thought to have been generated by a mean field dynamo. In order to have generated the fields observed, the dynamo would…
On the thickness of a mildly relativistic collisional shock wave
Jose A. S. Lima, Alejandra Kandus, Reuven Opher
We consider an imperfect relativistic fluid which develops a shock wave and discuss its structure and thickness, taking into account the effects of viscosity and heat conduction in…
Self consistent estimates of magnetic fields from reheating
Esteban Calzetta, Alejandra Kandus
We investigate the generation of primordial magnetic fields from stochastic currents created by the cosmological transition from inflation to reheating. We consider N charged scala…