Multi-Spacecraft Observations: Stream Interactions and Associated Structures

Details Multi-Spacecraft Observations: Stream Interactions and Associated Structures Multi-Spacecraft Observations: Stream Interactions and Associated Structures

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009soph..259..345j&link_type=abstract

Solar Physics, Volume 259, Issue 1-2, pp. 345-360

Physics

5

Solar Wind, Stream Interaction, Shock, Multi-Spacecraft Observation

Scientific paper

The stream interaction region (SIR), formed when a fast stream overtakes a preceding slow stream, is the predominant large-scale solar wind structure at this early phase of the STEREO mission. Using multi-spacecraft observations from STEREO A and B, ACE, Wind, and Ulysses in 2007, we analyze three stream interaction events in depth in May, August, and November of 2007, respectively, when the spacecraft had quite different spatial separations. We attempt to determine the causes of the differences in the SIR properties, whether they are spatial or temporal variations, and also to examine the steepening or widening of the SIR during its radial evolution. The presence and characteristics of associated shocks, the relation to the heliospheric current sheet, and other structures are also studied.

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