Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005apj...631l.163j&link_type=abstract
The Astrophysical Journal, Volume 631, Issue 2, pp. L163-L165.
Astronomy and Astrophysics
Astronomy
20
Interplanetary Medium, Shock Waves
Scientific paper
The magnetic field observed in a fluctuating, dynamical heliosheath will differ considerably from that in a static heliosheath. In particular, the time between current-sheet crossings (sectors) is quite sensitive to the radial speed of the solar wind termination shock. If an inwardly moving termination shock moves past an observer on a slowly moving spacecraft, the time between current-sheet crossings in the heliosheath becomes larger, and can become very large, for reasonably expected inward shock speeds. This effect may help to explain recent observations of the magnetic field from the Voyager 1 spacecraft, where, in the heliosheath, the magnetic field has remained directed outward from the Sun for several months.
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