ar X iv : a st ro - p h / 99 11 16 5 v 1 1 0 N ov 1 99 9 Turbulent dynamo action in the high – conductivity limit : a hidden dynamo

ar X iv : a st ro - p h / 96 11 19 4 v 1 2 2 N ov 1 99 6 SMALL - SCALE - FIELD DYNAMO

Generation of magnetic field energy, without mean field generation, is studied. Isotropic mirror-symmetric turbulence of a conducting fluid amplifies the energy of small-scale magnetic perturbations if the magnetic Reynolds number is high, and the dimensionality of space d satisfies 2.103 < d < 8.765. The result does not depend on the model of turbulence, incompressibility and isotropy being th...

ar X iv : a st ro - p h / 97 11 24 4 v 1 2 0 N ov 1 99 7 POPULATION SYNTHESIS OF HIGH ENERGY TRANSIENTS RELATIVISTIC BINARY MERGING RATES

ar X iv : a st ro - p h / 96 11 14 3 v 1 1 9 N ov 1 99 6 A high deuterium abundance in the early Universe

ar X iv : a st ro - p h / 99 11 43 8 v 1 2 3 N ov 1 99 9 H 2 molecules and cold clouds in cooling flow clusters †

ar X iv : a st ro - p h / 99 03 38 4 v 1 2 5 M ar 1 99 9 – 1 – Constraints on the magnitude of α in dynamo theory Eric

We consider the back reaction of the mean magnetic field on the magnitude of the dynamo helicity coefficient α and obtain upper limits on its magnitude from the equation of magnetic helicity evolution. When gradients in the mean magnetic field vanish, the magnitude of the turbulent EMF, and thus the dynamo coefficient α, has a stringent upper limit that depends on the magnetic Reynolds number R...