Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....81...78n&link_type=abstract
Astronomy and Astrophysics, vol. 81, no. 1-2, Jan. 1980, p. 78-82. Research supported by the Nederlandse Organisatie voor Zuive
Astronomy and Astrophysics
Astrophysics
1
Collision Parameters, Explosions, Interstellar Gas, Magnetohydrodynamics, Radio Galaxies, Astronomical Maps, Clouds, Mach Number, Plasma Density
Scientific paper
High density clouds colliding at high Mach numbers show magnetic fields directed perpendicular to the ejection axis at the place of collision and stronger electric currents than in the surroundings. A strong emitting region is seen near the place of collision and the clouds disrupt as a result of the collision. If collision takes place at sufficiently low Mach number immediate disruption may be avoided, but very fine tuning of the engine that makes the plasma clouds seems necessary for this case to apply. The gas dynamic part of the scenario of Christiansen et al. seems all right; however, channels and dilution of material of the primary cloud are not relevant for the process to work. Turbulence may arise after collision before the clouds disperse.
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