Physics – Plasma Physics
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsh33c..05l&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #SH33C-05
Physics
Plasma Physics
[7524] Solar Physics, Astrophysics, And Astronomy / Magnetic Fields, [7526] Solar Physics, Astrophysics, And Astronomy / Magnetic Reconnection, [7811] Space Plasma Physics / Discontinuities
Scientific paper
We investigate the heliospheric current sheet (HCS) crossing events and the related heliospheric plasma sheet (HPS) on both STEREO spacecraft from Mar, 1, 2008 to Dec, 31, 2008. Observed plasma sheets are categorized into two types based on their relative position to the current sheets. Type I plasma sheets straddle the current sheets, and type II plasma sheets are located on one side of the current sheets. The electron heat flux dropouts (HFD) are also documented for each type of plasma sheets. Initially, the investigation was limited to 39 ideal HCS crossings. Among the initial 39 HCS crossings in our study, 4 have no HPS, 21 have a type I HPS, and 13 a Type II HPS. Most of the Type II HCSs don’t show a HFD, but a large portion of type I HPSs show a HFD. Later, the study is generalized to all HCS events for which we can determine the actual time and properties of the HPS. This conclusion still holds when all the identifiable HPS are included in the study. Schematic plots summing the different magnetic field configurations are presented, and the potential origin of plasmas forming the two types of HPS is discussed.
Farrugia Charles J.
Galvin Antoinette B.
Jian Li
Kistler Lynn M.
Liu Ya-Ying
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