Physics – Plasma Physics
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsh21b1507o&link_type=abstract
American Geophysical Union, Fall Meeting 2009, abstract #SH21B-1507
Physics
Plasma Physics
[2126] Interplanetary Physics / Heliosphere/Interstellar Medium Interactions, [7835] Space Plasma Physics / Magnetic Reconnection
Scientific paper
The behavior of the interaction between the magnetosphere and the interplanetary magnetic field and the formation of reconnection X-lines have previously been modeled (Moore et al., JGR 2002) and observed (Pu et al., JGR 2007). We apply a similar method to examining the interaction of the heliosphere with the interstellar magnetic field. While today it is difficult to make direct measurements of the heliopause, an understanding of the characteristics of this interaction can help us compare models of the heliosphere to new observations of the interstellar boundary. Using a 3D magnetohydrodynamic simulation (Opher et al., Science 2007), a solution is obtained for a specified interstellar field. From this solution, we can identify the heliopause by selecting an appropriate isothermal surface. The change in magnetic field across this boundary reveals the likely locations for magnetic reconnection, defining the reconnection X-line at the heliosphere. The shape of the heliospheric X-line is presented as a function of the orientation of the interstellar magnetic field.
Alouani Bibi F.
Coplan Michael A.
Moore Thomas Earle
Olson D. K.
Opher Merav
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