Emese Forgács-Dajka

assistant professor

PhD (Eötvös Loránd University, Budapest, 2004)

Room(s): Northern Building 6.76
Extension(s): +36-1-372-2500 / 6624
Email: uh.etle.ktt@eseme.scagrof

Biography:

I am a researcher and lecturer at the Department of Astronomy, Eötvös Loránd University (ELTE), where I have been conducting research and teaching for nearly 25 years. My scientific interests span a broad range of astrophysical topics. I study the Sun as our central star, the dynamics and evolution of the Solar System, the behavior of multiple stellar systems, and even exotic theoretical models of neutron stars. I always work in collaboration with colleagues at the university and research institutes, and I strive to involve undergraduate and PhD students in our projects.

Over the years, I have developed numerical codes for astrophysical modeling, including a magnetohydrodynamical code solving the coupled evolution of velocity and magnetic fields, and a GPU-based parallel N-body code with adaptive hierarchical time steps. My work also explores solar differential rotation, torsional oscillations, and the influence of dynamo-generated magnetic fields. I have analyzed both long-term solar activity cycles (like the Gleissberg cycle) and mid-term variations using SOHO/MDI data. Additional studies include magnetoacoustic-gravity wave propagation in the solar corona, the dynamics of triple star systems, and resonances in planetary systems—both within the asteroid belt and among trans-Neptunian objects. In recent years, I’ve become increasingly interested in the possibilities of artificial intelligence and machine learning, and I have started exploring how these methods can be applied in astrophysical research.

I was honored with the Fenia Berz Award from the European Physical Society (2005) and received a research fellowship from the Observatoire de Paris (2004). In addition to my academic activities, I regularly give outreach lectures to both children and adults, aiming to make science accessible and engaging for all ages.

Links to associated scientific database profiles:

Publications in MTMT
Publications in ORCID
Publications in Scopus
Publications in Google Scholar

Selected publications of recent years:

Horváth, Anna; Forgács-Dajka, Emese; Barnaföldi, Gergely Gábor: "Application of Kaluza-Klein theory in modelling compact stars: exploring extra dimensions", 2025, Monthly Notices of the Royal Astronomical Society, Volume 536, Issue 1, pp.816-826
Ballai, I.; Forgács-Dajka, E. ; McMurdo, M.: "Parametric resonance of Alfvén waves driven by ionization-recombination waves in the weakly ionized solar atmosphere", 2024, Philosophical Transactions of the Royal Society A, Volume 382, Issue 2272, article id.20230226
Kővári, E.; Forgács-Dajka, E.; Kovács, T.; Kiss, Cs.; Sándor, Zs.: "A dynamical survey of the trans-Neptunian region - II. On the nature of chaotic diffusion", 2023, Monthly Notices of the Royal Astronomical Society, Volume 524, Issue 1, pp.L26-L31
Forgács-Dajka, E.; Kővári, E.; Kovács, T. ; Kiss, Cs.; Sándor, Zs.: "A Dynamical Survey of the Trans-Neptunian Region. I. Mean-motion Resonances with Neptune", 2023, The Astrophysical Journal Supplement Series, Volume 266, Issue 1, id.5, 12 pp.
Forgács-Dajka, Emese; Dobos, László; Ballai, István: "Time-dependent properties of sunspot groups. I. Lifetime and asymmetric evolution", 2022, Astronomy & Astrophysics, Volume 653, id.A50, 10 pp.