Results 11 to 20 of about 72,461 (205)
Galactic and Accretion Disk Dynamos [PDF]
, 1998 Dynamos in astrophysical disks are usually explained in terms of the standard alpha-omega mean field dynamo model where the local helicity generates a radial field component from an azimuthal field.
Balbus +20 more
core +2 more sources
Frontiers in Plant Science, 2017 Within the cell, biosynthetic pathways are embedded in protein-protein interaction networks. In Arabidopsis, the biosynthetic pathways of aliphatic and indole glucosinolate defense compounds are well-characterized.
Sebastian J. Nintemann +6 more
doaj +1 more source
A Long‐Lived Planetesimal Dynamo Powered by Core Crystallization
Geophysical Research Letters, 2021 The existence of numerous iron meteorite groups indicates that some planetesimals underwent melting that led to metal‐silicate segregation, sometimes producing metallic cores.
Clara Maurel +6 more
doaj +1 more source
General Relativistic Magnetohydrodynamics Mean-Field Dynamos
Fluids, 2022 Large-scale, ordered magnetic fields in several astrophysical sources are supposed to be originated, and maintained against dissipation, by the combined amplifying action of rotation and small-scale turbulence. For instance, in the solar interior, the so-
Luca Del Zanna +4 more
doaj +1 more source
Coherent nonhelical shear dynamos driven by magnetic fluctuations at low Reynolds numbers [PDF]
, 2015 Nonhelical shear dynamos are studied with a particular focus on the possibility of coherent dynamo action. The primary results -- serving as a follow up to the results of Squire & Bhattacharjee [arXiv:1506.04109 (2015)] -- pertain to the "magnetic shear ...
Bhattacharjee, Amitava, Squire, Jonathan
core +2 more sources
Atmosphere, 2022 The purpose of space weather is the systemic study of the Sun–Earth system, in order to determine the impact of solar events on the electromagnetic environment of the Earth.
Christine Amory-Mazaudier
doaj +1 more source
Current helicity constraints in solar dynamo models [PDF]
, 2012 We investigate to what extent the current helicity distribution observed in solar active regions is compatible with solar dynamo models. We use an advanced 2D mean-field dynamo model with dynamo action largely concentrated near the bottom of the ...
Gao, Yu +7 more
core +1 more source
New Journal of Physics, 2021 Reaching gigagauss magnetic fields opens new horizons both in atomic and plasma physics. At these magnetic field strengths, the electron cyclotron energy ℏω _c becomes comparable to the atomic binding energy (the Rydberg), and the cyclotron frequency ω ...
K Jiang, A Pukhov, C T Zhou
doaj +1 more source
Contributions to the theory of a two-scale homogeneous dynamo experiment [PDF]
, 2002 The principle of the Karlsruhe dynamo experiment is closely related to that of the Roberts dynamo working with a simple fluid flow which is, with respect to proper Cartesian co-ordinates x, y and z, periodic in x and y and independent of z.
Brandenburg, Axel, Raedler, Karl-Heinz
core +1 more source