Vliv jaderných hvězdokup na růst supermasivních černých děr
| Thesis title in Czech: | Vliv jaderných hvězdokup na růst supermasivních černých děr |
|---|---|
| Thesis title in English: | Impact of Nuclear Star Clusters on the growth of Supermassive Black Holes |
| Academic year of topic announcement: | 2025/2026 |
| Thesis type: | dissertation |
| Thesis language: | |
| Department: | Astronomical Institute of Charles University (32-AUUK) |
| Supervisor: | Mgr. Richard Wünsch, Ph.D. |
| Author: | hidden - assigned and confirmed by the Study Dept. |
| Date of registration: | 02.10.2025 |
| Date of assignment: | 02.10.2025 |
| Confirmed by Study dept. on: | 02.10.2025 |
| Advisors: | RNDr. Soňa Ehlerová, Ph.D. |
| Guidelines |
| The rapid growth of supermassive black holes (SMBHs) remains a fundamental puzzle in astrophysics, particularly given the detection of high-mass SMBHs in the early Universe. The aim of this project is to investigate the critical role of nuclear star clusters (NSCs) in facilitating the mass transfer required for SMBH growth. NSCs, which are among the densest and most massive stellar systems, often coexist with SMBHs in galactic centers, yet their dynamic interactions with surrounding gas and their influence on SMBH accretion is not sufficiently explored.
The project will utilize numerical models based on the public magneto-hydrodynamic code Flash, the radiation transport code TreeRay and other software developed within the Physics of Galaxies research group. The models will focus on the mechanisms responsible for redistributing the gas in the extreme environment of galactic centres, with a particular emphasis on the energy input from supernovae, stellar winds and radiation of massive stars of NSCs. The results will be compared to observations of galactic centres, allowing for direct evaluation of model predictions against infrared, radio, and X-ray data. |
| References |
| Combes, F, et al., 2019, A&A, 623, A79
Ferrière, K., 2012, A&A, 540, A50 Fryxell, B., Olson, K., Ricker, P., et al. 2000, ApJS, 131, 273 Genzel, R., Eisenhauer, F., & Gillessen, S. 2010, Reviews of Modern Physics, 82, 3121 Kormendy, J. & Ho, L. C. 2013, ARA&A, 51, 511 Morris, M. R., Meyer, L., Ghez, A. M., 2012, Research in Astronomy and Astrophysics, 12, 995 Neumayer, N., Seth, A., & Böker, T. 2020, A&ARv, 28, 4 Wünsch, R., Walch, S., Dinnbier, F., et al. 2021, MNRAS, 505, 3730 |