Dynamické perturbace trojhvězd a planetárních systémů detekovatelných na gravitačních vlnách projektem LISA
| Thesis title in Czech: | Dynamické perturbace trojhvězd a planetárních systémů detekovatelných na gravitačních vlnách projektem LISA |
|---|---|
| Thesis title in English: | Dynamical perturbations of triple stellar and planetary systems seen in gravitational waves with LISA |
| Key words: | gravitační vlny, dvojhvězda, LISA, exoplaneta, Lidov-Kozai |
| English key words: | gravitational waves, binary, LISA, exoplanet, Lidov-Kozai |
| Academic year of topic announcement: | 2019/2020 |
| Thesis type: | Bachelor's thesis |
| Thesis language: | čeština |
| Department: | Institute of Theoretical Physics (32-UTF) |
| Supervisor: | doc. Mgr. Ondřej Pejcha, Ph.D. |
| Author: | Mgr. Matěj Mezera - assigned and confirmed by the Study Dept. |
| Date of registration: | 10.12.2019 |
| Date of assignment: | 10.12.2019 |
| Confirmed by Study dept. on: | 17.12.2019 |
| Date and time of defence: | 14.07.2020 09:00 |
| Date of electronic submission: | 03.06.2020 |
| Date of submission of printed version: | 03.06.2020 |
| Date of proceeded defence: | 14.07.2020 |
| Opponents: | doc. RNDr. Robert Švarc, Ph.D. |
| Advisors: | Georgios Loukes Gerakopoulos, Dr. |
| Guidelines |
| LISA is an approved space-based mission for detection of mHz gravitational waves to be launched in 2030s. It will detect a number of compact binary stars, which emit gravitational waves on essentially a single frequency. This frequency can be smeared out by finer effects, for example by frequency shifts and light travel time effects for a binary orbiting a distant body (star or a planet) around a common barycenter. These perturbations, if detected, would provide a new probe of certain phenomena such as population of circumbinary planets.
Previous investigations of this issue neglected dynamical perturbations to the binary orbit from the distant companion. This will be fixed in this thesis. The goal is to calculate long-term orbits of triple systems composed of stars and planets and estimate gravitational wave signature of these effects detectable by LISA. |
| References |
| Robson et al. 2018, Physical Review D, Volume 98, Issue 6, id.064012, http://adsabs.harvard.edu/abs/2018PhRvD..98f4012R
Tamanini & Danielski 2019, Nature Astronomy, Volume 3, p. 858-866, https://ui.adsabs.harvard.edu/abs/2019NatAs...3..858T/abstract Rein, H., & Liu, S.-F. 2012, Astronomy & Astrophysics, Volume 537, id.A128, 10 pp., https://ui.adsabs.harvard.edu/abs/2012A%26A...537A.128R/abstract |