Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsh12a..07c&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #SH12A-07
Astronomy and Astrophysics
Astrophysics
7500 Solar Physics, Astrophysics, And Astronomy, 7509 Corona, 7513 Coronal Mass Ejections (2101), 7526 Magnetic Reconnection (2723, 7835)
Scientific paper
We present preliminary results from a new project to numerically investigate the role of interchange reconnection in the long-term evolution of the heliospheric magnetic field. We use the BATS-R-US model (U. of Michigan) to follow the detailed interaction between the magnetic field of CMEs and the ambient field. In particular, we use high-resolution simulations to track the interchange reconnection processes as the CME propagates away from the Sun. In the course of the project, we plan to simulate real CME events and compare the field evolution with in-situ measurements. We also plan to simulate idealized CMEs in order to investigate how the flux-rope orientation and the distance from coronal holes affect the change in the global field. The goal of this project is to better understand the role of the heliospheric flux in the evolution of the solar magnetic field and the solar cycle.
Cohen Ofer
Crooker Nancy U.
Gombosi Tamas I.
Owens Mathew J.
Schwadron Nathan A.
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