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Dr. Gábor FACSKÓ, PhD
University of Pecs, Faculty of Sciences, Institute of Mathematics and Informatics
H-7633 Pecs, Ifjusag utja 6, Building F, Room 215, Hungary
E-mail: facskog at gamma dot ttk dot pte dot hu
Phone: +36 72 503-600 Ext. 24872
Supervision of Scientific Student (TDK) thesis
Name: | Mr. Bertalan MAJOR, MSc in Aerospace Engineering, Budapest University of Technology and Economics, Budapest, Hungary |
Title: | Testing shock jump predictions: THEMIS Observations |
Topic: | After the solar wind crossed the bow shock and entered the magnetosheath the temperature, the magnetic field magnitude, and the density of the solar wind increased; furthermore the solar wind velocity dropped and its course changed. The theory of magnetohydrodynamics (MHD) had predictions for the ratio of these parameters on each side of the boundary layer. The three THEMIS spacecraft were in the same orbit therefore their particular configuration, magnetic field, and ion plasma measurements let us test the MHD bow shock jump predictions. Twenty events are selected and analyzed in this study. The ratio of the down- and upstream magnetic field magnitude and solar wind speed are calculated and compared to the theory. We expect deviances from the MHD theory at the quasi-parallel bow shock region and when transient dayside magnetospheric events are observed near the bow shock crossing. |
Keywords: | Terrestrial bow shock shock, Solar wind: space plasma |
Supervision of MSc thesis
Name: | Mr. Munkhjargal LKHAGVADORJ, MSc in Physics, Eötvös Loránd University, Budapest, Hungary |
Title: | Propagation of interplanetary shocks in the heliosphere |
Topic: | NASA and the European Space Agency dispatched a fleet to study the heliosphere and the planets of the Solar System. A few probes were measured inside the orbit of the Earth, some missions collected data outside of the orbit of the our planet. In the meantime, another group of space probes recorded the variations ofthe solar wind at the L1 Lagrange point. The purpose of this thesis is the observation of interplanetary shocks by at least two different spacecraft. Furthermore, to determine the changes and developements of the shock parameters during propagation. Finally, the collected conjigated observations should be compared with exixting models and simulations. |
Graduation: | 2023 |
Supervision of Scientific Student (TDK) thesis
Name: | Mr. Munkhjargal LKHAGVADORJ, MSc in Physics, Eötvös Loránd University, Budapest, Hungary |
Title: | Temporal Development of Interplanetary Shocks in the Heliosphere |
Topic: | Interplanetary shocks are one of the crucial dynamic processes in the Heliosphere. They accelerate particles into high energy, generate plasma waves and could potentially trigger geomagnetic storms in the terrestrial magnetosphere disturbing significantly our technological infrastructures. In this study, two IP shock events are selected to investigate the temporal variations of the shock parameters using magnetometer and ion plasma measurements of the STEREO A and B, the Wind, and the ACE spacecraft. The shock normal vectors are determined using the minimum variance analysis (MVA) and the magnetic coplanarity methods. During the May 07 event, the shock parameters and the shock normal direction are consistent. During the April 23 event, the shock parameters do not change significantly, however, the shape of the IP shock appears to be twisted along the transverse direction to the Sun-Earth line. Stereo B does not observe the IP shock signatures during this event. |
Keywords: | Interplanetary shock, Solar wind: space plasma, Heliosphere |
Conference: | Outstanding Thesis, Particle Physics Section, Physics Conference of Faculty of Science, Budapest, December 17, 2022. |
Conference: | Special Prize, Plasma Physics Subsection, Earth Sciences, Physics and Mathematics Section, Veszprém, April 11-13, 2023. Closing ceremony |