Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsh33a2039c&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #SH33A-2039
Astronomy and Astrophysics
Astrophysics
[2134] Interplanetary Physics / Interplanetary Magnetic Fields, [7536] Solar Physics, Astrophysics, And Astronomy / Solar Activity Cycle
Scientific paper
Examination of L1 magnetic field data from the recent solar minimum reveals evidence for ongoing magnetic reconnection below the Alfven critical point and throughout the recent protracted solar minimum. This ongoing reconnection permits both the ejection of open field lines from the heliosphere and the creation of new magnetic loops that are capable of subduction below the photosphere. At the same time, a theory can be developed based on related published ideas wherein CMEs contribute magnetic field to interplanetary space that, in time, become part of the observed open field line population. What seems most interesting is that (1) throughout the recent protracted solar minimum the IMF flux drops steadily and the apparent reconnection continues at a very steady rate, and (2) the field model can account for this observation by using reasonable parameters for ICME flux content and reconnection rates. We will also show our efforts to account for the interplanetary magnetic field during the rising phase of the solar cycle as CME flux injection is balanced against reduction by field line reconnection.
Connick D.
Schwadron Nathan A.
Smith Walter C.
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