Disciplines
Physics, Astronomy (100%)
Keywords
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Stellar physics,
Rossby waves
The project proposes a novel and original research in the theory of Rossby waves in various applications of stellar interiors including magnetic dynamo and tidal interaction. The scientific tasks are: to study the radial/latitudinal structures of Rossby waves in stellar interiors as well as possible wave trapping in layers of minimum temperature gradient; to study the coupling of Rossby and dynamo waves in the dynamo layers of Sun-type stars and their role in activity cycles; to study the Rossby waves in stellar interiors under the tidal influence of a companion star or an exoplanet. Each task of the project will push forward corresponding original research field in the theory of stellar Rossby waves. The project will be fulfilled by the main proposer, Dr Zaqarashvili, during 4 years. The field of expertise of the proposer includes the theoretical modelling of solar atmosphere and interior, stellar activity and stellar-planetary interaction. Dr Zaqarashvili has a long-term experience in Rossby wave theory (including magnetic field influence) with the relation to solar interior and activity. The fulfilment of project tasks will be coordinated with international experts from USA, Italy and Spain.
- Universität Graz - 100%
- Philippe-Andre Bourdin, Universität Graz , national collaboration partner
- Antonino Lanza, INAF-Osservatorio Astrofisico di Catania - Italy
- Paul Beck, University La Laguna - Spain
- Mausumi Dikpati, National Center for Atmospheric Research - USA
- Peter Gilman, National Center for Atmospheric Research - USA
Research Output
- 1 Citations
- 1 Publications
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2025
Title Magnetohydrodynamic shallow water equations with the alpha effect: Rossby-dynamo waves in solar–stellar tachoclines DOI 10.1051/0004-6361/202556108 Type Journal Article Author Zaqarashvili T Journal Astronomy & Astrophysics Link Publication