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Dynamics of Active Regions Revealed by Tracking of Doppler Features
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SYSNO ASEP 0355090 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Dynamics of Active Regions Revealed by Tracking of Doppler Features Author(s) Švanda, Michal (ASU-R) RID, ORCID
Sobotka, Michal (ASU-R) RID, ORCID
Klvaňa, Miroslav (ASU-R) RID
Bumba, Václav (ASU-R)Source Title Magnetic Coupling between the Interior and Atmosphere of the Sun. - Berlin : Springer, 2010 / Hasan S.S. - ISSN 1570-6591 - ISBN 978-3-642-02858-8 Pages s. 410-412 Number of pages 3 s. Action Magnetic Coupling between the Interior and Atmosphere of the Sun Event date 02.12.2008-05.12.2008 VEvent location Bangalore Country IN - India Event type WRD Language eng - English Country DE - Germany Keywords coronal mas ejections ; evershed effect ; helioseismology Subject RIV BN - Astronomy, Celestial Mechanics, Astrophysics R&D Projects IAA300030808 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z10030501 - ASU-R (2005-2011) DOI 10.1007/978-3-642-02859-5_42 Annotation We investigate the large-scale horizontal dynamics of active regions in the 23rd solar cycle. The large-scale horizontal velocity fields were measured applying the local correlation tracking (LCT) algorithm to the processed high-cadence full-resolution full-disc MDI Dopplergrams. We performed the selection of NOAA active regions in the available dataset and followed their individual evolution in time. The statistical study of this sample gives us a unique opportunity to study the dynamics of active regions at various stages of their evolution. In few cases, we found behavior that is consistent with the dynamical disconnection of sunspots from the magnetic roots. Workplace Astronomical Institute Contact Radka Svašková, bibl@asu.cas.cz, Tel.: 323 620 326 Year of Publishing 2011
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