Orientations of Correlated Wind and ACE Features

Details Orientations of Correlated Wind and ACE Features Orientations of Correlated Wind and ACE Features

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufmsh21b0152l&link_type=abstract

American Geophysical Union, Fall Meeting 2003, abstract #SH21B-0152

Other

2102 Corotating Streams, 2109 Discontinuities, 2134 Interplanetary Magnetic Fields, 2139 Interplanetary Shocks, 2164 Solar Wind Plasma

Scientific paper

In August 2000 Wind entered a unique orbit with excursions in {YGSE} of +/- 300 {RE}. ACE, in a standard L1 halo orbit, frequently observes solar wind features that correlate well with those seen by Wind. By comparing maximum-correlation lag times of features seen by ACE and Wind in 2000-2001, we show the front normals of these features are bounded by the radial direction and the normal to the Parker spiral. Interplanetary shocks are frequent and prominent features in the solar wind during this period, consequently we separate shock normals from front normals of other well-correlated features. We find that, on average, shocks travel in the radial direction in agreement with shock normal analysis using Rankine-Hugoniot relations. In contrast, normals of the other well-correlated features are distributed between the radial direction and the ortho-Parker direction. Wind observations are supported, in part, by NASA/Goddard Space Flight Center

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