3D MHD Modeling of the Gaseous Structure of the Galaxy.
@inproceedings{Gomez20023DMM, title={3D MHD Modeling of the Gaseous Structure of the Galaxy.}, author={G. Gomez and Donald P. Cox}, year={2002} }
We show the results of our 3D MHD simulations of the o w of the Galactic atmosphere as it responds to a spiral perturbation in the potential.
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References
SHOWING 1-10 OF 21 REFERENCES
Vertical extensions of galactic spiral arms
- Physics
- 1981
The vertical structure of the large scale galactic shock along spiral arms is studied, in order to understand the extended features or the ''wings'' of spiral arms observed by Kepner and recently…
Hydrostatic equilibrium of gas, extent of cosmic ray confinement, and radio emission in the Galaxy
- Physics
- 1977
A detailed study of the hydrostatic equilibrium of the gas-field system perpendicular to the galactic plane in the neighborhood of the Sun, assuming that the magnetic field is parallel to the plane,…
Magnetohydrodynamic Modeling of a Galactic Spiral Arm as a Combination Shock and Hydraulic Jump
- Physics, Geology
- 1998
We consider the interarm-to-arm transition for gas flow in the Galactic disk, modeled as a thick, magnetized, cloudless layer of gas in hydrostatic equilibrium with external gravity from stars, and…
Large-Scale Shock Formation in Spiral Galaxies and its Implications on Star Formation
- Physics, Geology
- 1969
Two armed spiral galactic shock waves as triggering mechanism for gravitational collapse leading to star formation, considering gaseous disk motion using Schmidt model
The column density and scale height of free electrons in the galactic disk
- Physics
- 1989
The recent discoveries of millisecond pulsars in globular clusters located far from the Galactic plane provide the first direct measurements of the total extent and column density of diffuse ionized…
Forbidden velocity gas detected in ultraviolet interstellar absorption toward four distant inner galaxy stars
- Physics
- 1993
We analyze International Ultraviolet Explorer high-dispersion observations of interstellar absorption toward HD 167402, HD 168941, HD 172140, and HD 173502, four distant, inner Galaxy, lower…
Galactic hydrostatic equilibrium with magnetic tension and cosmic-ray diffusion
- Physics
- 1990
Three gravitational potentials differing in the content of dark matter in the Galactic plane are used to study the structure of the z-distribution of mass and pressure in the solar neighborhood. A…
The gaseous galactic halo as inferred from the line spectra of the galaxies Markarian 509 and Fairall 9
- Physics
- 1982
Narrow interstellar absorption lines of S II 1259.52, Si II 1260.42, and Fe II 1608.46 due to gas in the disk and the halo of the Galaxy have been detected in the spectrum of the Seyfert galaxy Mrk…
NGC 1058 - Gas motions in an extended, quiescent spiral disk
- Physics
- 1990
The motion of gas in the galaxy NGC 1058 is examined, using VLA observations to map emission in the 21-cm line. The hypothesis that the rotation curve drops faster than Keplerian at the outer edge of…