Physics
Scientific paper
Sep 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986georl..13..929o&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 13, Sept. 1986, p. 929-932.
Physics
12
Comet Tails, Plasma Interactions, Solar Wind, Cometary Magnetospheres, Interplanetary Magnetic Fields, Magnetic Field Reconnection, Plasma Density, Shock Wave Propagation, Simulation
Scientific paper
The interaction between the solar wind and the outflowing plasmas from a comet has been studied by using a two-dimensional time-dependent magnetohydrodynamic (MHD) simulation. The model reproduced several features of the comet-solar wind interaction predicted by earlier theories and observed on the recent cometary probes. These include the formation of the contact surface and the cometary magnetotail. For a constant interplanetary magnetic field (IMF) the cometary plasma captures field lines which drape over the comet to form an antiparallel magnetic field configuration in the tail and a thin plasma sheet. Eventually, tail magnetic reconnection begins to occur at several points. When the IMF orientation is reversed dayside magnetic reconnection occurs at the subsolar point and a large disturbance propagation down the tail.
Ashour-Abdalla Maha
Ogino Takeshi
Walker Ray J.
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