Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aipc..932..129p&link_type=abstract
TURBULENCE AND NONLINEAR PROCESSES IN ASTROPHYSICAL PLASMAS; 6th Annual International Astrophysics Conference. AIP Conference P
Astronomy and Astrophysics
Astrophysics
3
Heliosphere/Interstellar Medium Interactions, Interplanetary Magnetic Fields, Heliopause And Solar Wind Termination
Scientific paper
In this paper we discuss physical phenomena that could make the solar wind (SW) termination shock (TS) asymmetric enough to explain observations made by the Voyager 2 spacecraft that suggest that the TS is closer to the Sun by about 12 AU in the Voyager 2 than in the Voyager 1 direction. It is shown that the interstellar magnetic field (ISMF) itself is very unlikely to be solely responsible. Unsteady phenomena are suggested as another possibility. We consider the cases of a SW velocity perturbation propagating through the heliosphere, the 11-year-cycle SW-LISM interaction, the instability of the heliopause, and the TS interaction with a randomly perturbed SW The results are obtained using a multi-fluid approximation for the SW interaction with the local interstellar medium (LISM).
Borovikov Sergey N.
Kryukov Igor A.
Pogorelov Nikolai V.
Shaikh Dastgeer
Zank Gary P.
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