Physics
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsh21b1612r&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #SH21B-1612
Physics
2104 Cosmic Rays, 2114 Energetic Particles (7514), 2124 Heliopause And Solar Wind Termination, 2126 Heliosphere/Interstellar Medium Interactions, 2162 Solar Cycle Variations (7536)
Scientific paper
Voyager 2 (V2) crossed the termination shock (TS) on August 30, 2007 at a distance 84 AU and about 10 AU closer to the Sun than Voyager 1 (V1) on December 16, 2004. This asymmetry can result from the solar wind dynamic pressure asymmetry, from the shock motion or from the local interstellar magnetic field (LIMF) asymmetric pressure. We show that if the interstellar magnetic field were the only factor responsible for the measured asymmetries, it is possible to find such a shape of the TS, which would reflect the real positions of V1 and V2 when they crossed the shock. It places an additional constraint on the orientation and magnitude of the interstellar magnetic field. Our predictions on the LIMF are well correlated with observations and measurements reported by Lallement et al., Science 307, p. 1447, 2005, Gurnett et al., AIP 858, p.129, 2006, and Wang et al., Nature 454, p.81, 2008.
Grygorczuk Jerzy
Ratkiewicz Roma
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