Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...210..433s&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 210, no. 1-2, Feb. 1989, p. 433-454.
Astronomy and Astrophysics
Astrophysics
56
Comet Tails, Cometary Atmospheres, Interplanetary Magnetic Fields, Magnetospheres, Solar Wind, Space Plasmas, Discontinuity, Giacobini-Zinner Comet, Halley'S Comet, Magnetohydrodynamics, Comets, Plasma, Magnetohydrodynamics, Simulations, Magnetic Fields, Structure, Flow, Comet Tails, Magnetic Effects, Hypotheses, Models, Comparisons, Magnetosphere, Solar Wind, Interaction, Time Dependency, Calculations, Numerical Methods, Boundaries, Pressure, Density, Halley, Giacobini-Zinner, Condensation
Scientific paper
The effects of discontinuities in the IMF on the surface of a comet are studied with an implicit time-dependent three-dimensional magnetohydrodynamical code. Model calculations are performed for comets Giacobini-Zinner 1985 and Halley 1986, including detailed source terms for mass, momentum, and energy. The results are in generally in good agreement with spacecraft measurements, although stationary simulations cannot describe the pile up of the magnetic field in the stagnation region. Contrary to the day-side reconnection model of Niedner and Brandt (1978), no condensation or disconnection event was found using an IMF reversal.
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