Physics
Scientific paper
Sep 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..784..786n&link_type=abstract
MAGNETIC FIELDS IN THE UNIVERSE: From Laboratory and Stars to Primordial Structures. AIP Conference Proceedings, Volume 784, pp
Physics
Magnetohydrodynamics, Galaxies, Magnetohydrodynamics And Plasmas, Spiral Arms And Bars, Galactic Disks, Spiral Galaxies
Scientific paper
We present the results of global three dimensional magnetohydrodynamic simulations of galactic gaseous disks. For the gravitational potential we adopt a model of our galaxy including dark matter given by Miyamoto et al. (1980). The initial gas distribution is that of an equilibrium torus in the gravitational potential. We assume initially weak toroidal magnetic fields. As the magnetorotational instability develops the torus becomes turbulent and changes itself into a disk. Magnetic energy increases and saturates when B ~ 1μG. The magnetic field is maintained for more than 2.0 × 109 yrs. Although magnetic fields inside the disk are turbulent, global mean azimuthal field appears. The direction of the mean azimuthal field changes with the height from the equatorial plane. We also present the results of global MHD simulations under non-axisymmetric bar potential.
Machida Mami
Matsumoto Ryoji
Nishikori Hiromitsu
No associations
LandOfFree
Global Three-dimensional MHD Simulations of Galactic Gaseous Disks does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Global Three-dimensional MHD Simulations of Galactic Gaseous Disks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Global Three-dimensional MHD Simulations of Galactic Gaseous Disks will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1300749