Observations of Earth's Bow Shock Structure from the First Chinese scientific Satellite, Double Star

Details Observations of Earth's Bow Shock Structure from the First Chinese scientific Satellite, Double Star Observations of Earth's Bow Shock Structure from the First Chinese scientific Satellite, Double Star

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agufmsm31a1200p&link_type=abstract

American Geophysical Union, Fall Meeting 2004, abstract #SM31A-1200

Physics

2109 Discontinuities, 2139 Interplanetary Shocks, 2784 Solar Wind/Magnetosphere Interactions

Scientific paper

New features of Earth's bow shock structure have been observed by the HIA ion experiment on the first Chinese scientific satellite, Double Star. At times of coincident apogee, the Cluster spacecraft served as monitors of the upstream condition providing information from nearly identical instruments. The combination of the orbit with an apogee approximately at 13.5 Re and data obtained in high time resolution (4s) has permitted observations of the shock structure with unprecendented detail. We present examples of laminar and turbulent shocks observed in late February and early March (2004) when the Double Star apogee was located on the sunward side skimming the shock boundary. This talk will discuss (1) evolutionary features of ion distributions of the solar wind slowdown converting almost the entire flow energy into thermal energy, (2) microscopic features that could be signifying kinetic processes at work and (3) ordering of density, bulk velocity and temperature to show the distribution of solar wind momentum and energy throughout the shock transition.

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