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astro-ph2008★ 160 cited
Direct simulations of a supernova-driven galactic dynamo
Oliver Gressel, Detlef Elstner, Udo Ziegler +1
Supernovae are known to be the dominant energy source for driving turbulence in the interstellar medium. Yet, their effect on magnetic field amplification in spiral galaxies is sti…
astro-ph2008★ 47 cited
Dynamo coefficients from local simulations of the turbulent ISM
Oliver Gressel, Udo Ziegler, Detlef Elstner +1
Observations in polarized emission reveal the existence of large-scale coherent magnetic fields in a wide range of spiral galaxies. Radio-polarization data show that these fields a…
astro-ph2006
A non-axisymmetric magnetorotational instability of a purely toroidal magnetic field
R. Hollerbach, G. Rudiger, M. Schultz +1
We consider the flow of an electrically conducting fluid between differentially rotating cylinders, in the presence of an externally imposed toroidal field B_0 (r_i/r) e_phi. It is…