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5 papers · 1 filter
The galactic dynamo effect due to Parker-shearing instability of magnetic flux tubes. III. The fast dynamo model
M. Hanasz, H. Lesch
We present a new fast dynamo model for galactic magnetic fields, which is based on the Parker-shearing instability and magnetic reconnection, in the spirit of the model proposed by…
The galactic dynamo effect due to Parker-shearing instability of magnetic flux tubes. II. Numerical simulations and the nonlinear evolution
M. Hanasz
In this paper we continue investigations of the Parker-shearing instability performing numerical simulations of the magnetic flux tube dynamics in the thin flux-tube approximation.…
Kelvin-Helmholtz instability of relativistic jets - the transition from linear to nonlinear regime
M. Hanasz
The observed wiggles and knots in astrophysical jets as well as the curvilinear motion of radio emitting features are frequently interpreted as signatures of the Kelvin-Helmholtz (…
Hydrodynamical instability of extragalactic stratified jets
M. Hanasz, H. Sol
The recent development of tomographic analysis of radio data shows the presence of sheaths around several extragalactic jets. We have studied the Kelvin-Helmholtz instability of su…
On the Integrability of Bianchi Cosmological Models
Andrzej J. Maciejewski, Marek Szydlowski
In this work, we are investigating the problem of integrability of Bianchi class A cosmological models. This class of systems is reduced to the form of Hamiltonian systems with exp…