Physics
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agusmsh24a..02b&link_type=abstract
American Geophysical Union, Spring Meeting 2008, abstract #SH24A-02
Physics
2124 Heliopause And Solar Wind Termination, 2126 Heliosphere/Interstellar Medium Interactions, 2134 Interplanetary Magnetic Fields
Scientific paper
This paper compares magnetic field observations of the heliosheath made by Voyager 1 (V1) and Voyager 2 (V2) during intervals of approximately 150 days behind the respective termination shocks. Large fluctuations in the magnetic field strength (B) were observed by both spacecraft over a large range of scales. Voyager 1 observed Gaussian distributions of B on a range of scales, but V2 observed more complicated variability. Beginning a few days after the motion of the termination shock (TS) past V1, a unipolar sector was observed by V1 for nearly 110 days, indicating that the flow speed in the heliosheath was less than approximately 20 km/sec. Voyager 2 observed a more complicated sector pattern and higher flow speeds. The variability of the magnetic field direction was relatively low in the sector observed by V1, but it was greater in the sectors observed by V2. Large variability in the magnetic field strength on a scale of several hours was observed by both V1 and V2; the nature of this variability will be described by several examples.
Acuña M.
Burlaga Len
Ness Nathan
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