Physics
Scientific paper
May 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agusm.p11a..11j&link_type=abstract
American Geophysical Union, Spring Meeting 2004, abstract #P11A-11
Physics
2780 Solar Wind Interactions With Unmagnetized Bodies, 6025 Interactions With Solar Wind Plasma And Fields, 6210 Comets, 7827 Kinetic And Mhd Theory
Scientific paper
Possible reasons for cometary tail disconnection events are studied in sets of time-dependent global MHD (BATS-R-US) simulations. The effects of several solar wind discontinuities on the plasma tail of a comet are discussed. In particular, idealized simple discontinuities like a tangential iscontinuity and a density jump are investigated. Moreover, effects on the plasma tail created by some more complicated but balanced disturbances, and some more realistic solar wind disturbances are presented as well. The advanced flux solver and adaptive-mesh grid system utilized in this analysis allow us to track variations simultaneously on scales from two million kilometers sunward to a few kilometers above the cometary nucleus and back out into the distant tail. During the simulation, in addition to the morphology of the thin plasma tail, a well-resolved magnetic cavity can be seen responding to the solar wind disturbances.
Combi Michael R.
Jia Yu
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