témavezető: Erdélyi Róbert
helyszín (magyar oldal): Dept of Astronomy, Eotvos University helyszín rövidítés: ELTE
A kutatási téma leírása:
The production of flares and Coronal Mass Ejections (CMEs) from solar active regions (ARs) is still not well understood in spite of their huge importance to Sun-Earth connections, in particular, to protect mankind and our sophisticated technological systems that might be at considerable risk from high-speed charged particles blowing often abruptly off the Sun. These most energetic eruptions of the entire Solar System follow the 11-year solar cycle. At the peak of the cycle, several dangerously high-intensity class flares and CMEs may occur (i.e. around monthly 2-3). Most solar flares and CMEs originate from magnetically active regions around sunspot groups. To make a leap forward in Space Weather prediction, the student will generalise our forecast method, by applying it to the Interface Region and low corona in 3D, in order to identify the optimum height for flare/CME lift-off prediction in the solar atmosphere. Here, we expect to considerably increase the current forecast capability, with having massive practical implications in our high-tech-driven world. In particular, the student will aim (i) to investigate the pre-flare/CME dynamics and the related physical processes in the 3D solar atmosphere by constructing the magnetic topology above ARs, and (ii) to track their temporal evolution by applying WGM. These aims aims will be realized by the objectives of (i) acquiring knowledge to implement potential and non-linear field exploration techniques; (ii) create a data catalogue of 3D magnetic mapping of AR(s). The student will also (iii) employ the next-generation high spatial- and temporal-resolution sunspot data, provided by a combination of ground- and space-based magnetogram, white light and EUV observations, in particular with the complementary use of the solar observations of the novel Gyula Solar Telescope.
This project requires interest in taking observations by either ground- or space-based telescope. Therefore it is expected that the student may undertake such work at ground-based solar observatories. Further, the project also likely requires collaboration with colleagues from Solar Physics and Space Plasma Research Centre (SP2RC), University of Sheffield (UK). Therefore it is anticipated the student to spend some more extensive time at SP2RC within the framework of Erasmus+ or otherwise.
előírt nyelvtudás: English további elvárások: mentioned above
felvehető hallgatók száma: 2
Jelentkezési határidő: 2018-05-31
2024. IV. 17. ODT ülés Az ODT következő ülésére 2024. június 14-én, pénteken 10.00 órakor kerül sor a Semmelweis Egyetem Szenátusi termében (Bp. Üllői út 26. I. emelet).
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