Dynamics of a toroidal magnetic cloud: a semi-analytic approach magnetic cloud

0421344 - ASÚ 2014 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Vandas, Marek - Romashets, E.
Dynamics of a toroidal magnetic cloud: a semi-analytic approach magnetic cloud.
Solar Wind 13: Proceedings of the Thirteenth International Solar Wind Conference. Melville: American Institute of Physics, 2013 - (Zank, G.), s. 287-290. AIP Conference proceedings, 1539. ISBN 9780735411630. ISSN 0094-243X.
[Solar Wind 13. Big Island, Hawaii (US), 17.06.2012-22.06.2012]
Grant CEP: GA ČR GA205/09/0170; GA MŠMT ME09032
Institucionální podpora: RVO:67985815
Klíčová slova: interplanetary magnetic fields * interplanetary matter * solar wind
Kód oboru RIV: BN - Astronomie a nebeská mechanika, astrofyzika

Magnetic clouds are a subset of coronal mass ejections with a well-defiened magnetic structure. They are modeled as toroids in the present study and their dynamics in the inner heliosphere is investigated under the influence of external forces, namely gravitational, drag, and diamagnetic ones. The forces cause not only changes in radial motion, but also a rotation of the toroid. The diamagnetic force and its moment acting on the toroid in an inhomogeneous magnetic field are expressed analytically. Resulting equations of motion are solved numerically and typical solutions are presented.
Trvalý link: http://hdl.handle.net/11104/0227683