HR: 1330h
AN: SH42B-0510    [PDF]
TI: Modeling the Large-Scale Corona Surrounding an Active Region
AU: * Mikic, Z
EM: mikicz@saic.com
AF: SAIC, 10260 Campus Point Drive, San Diego, CA 92121 United States
AU: Linker, J A
EM: linkerj@saic.com
AF: SAIC, 10260 Campus Point Drive, San Diego, CA 92121 United States
AU: Lionello, R
EM: lionellor@saic.com
AF: SAIC, 10260 Campus Point Drive, San Diego, CA 92121 United States
AU: Riley, P
EM: pete@peteriley.org
AF: SAIC, 10260 Campus Point Drive, San Diego, CA 92121 United States
AB: Recent advances in our 3D MHD computational model have extended our capability to study the detailed structure of an active region, particularly how it is embedded in the magnetic field of surrounding large-scale coronal streamers. Our spherical MHD code now gives us the capability of concentrating the mesh points in an active region, where the magnetic field is strong, while at the same time modeling the weaker field of the large-scale corona of the whole Sun. It is thus possible to study the interaction of the active-region magnetic field with that of the Sun's overlying large-scale dipolar magnetic field. We will show the active-region/streamer structure for particular simulations of the solar minimum corona. These kind of simulations will be the starting point for the study of fast CMEs that originate in active regions. Research supported by NASA and the Center for Integrated Space Weather Modeling (an NSF Science and Technology Center).
DE: 7509 Corona
DE: 7524 Magnetic fields
DE: 7827 Kinetic and MHD theory
SC: SPA - Solar and Heliospheric Physics [SH]
MN: 2003 Fall Meeting