Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...330..718h&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 330, July 15, 1988, p. 718-736. Research supported by the Observatoire de P
Astronomy and Astrophysics
Astrophysics
60
Astronomical Models, Galactic Nuclei, Interstellar Magnetic Fields, Milky Way Galaxy, Coronal Loops, Interstellar Gas, Ionized Gases, Magnetic Field Reconnection, Magnetohydrodynamic Waves, Radio Emission, Toruses
Scientific paper
A simple model for the production and propagation of magnetized loops in the Galactic center is developed. It is found that a magnetized model can reproduce the filamentary, asymmetric structures on all scales from 100 pc to subparsec scales in the Galactic center. The radio and molecular gas morphology on all scales inside the Galactic center lobe may be explained in terms of the expansion of strongly magnetized loops and their interaction with the 2-5 pc torus and 30-50 pc portion of the center lobe. The magnetic loops have a toroidal field which explains the braided appearance of the radio continuum emission on the 2 pc scale. The barlike feature on the 2 pc radio continuum maps can be viewed as a piece of a magnetic loop with field strength about 0.01 G which is colliding and reconnecting with the ionized inner edge of the 2 pc molecular torus. The loop-torus interaction feeds energetic particles and shear Alfven waves into the torus, and deposits mass and energy.
Heyvaerts Jean
Norman Colin
Pudritz Ralph E.
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