Teorie interagujících dvojhvězd

• Thesis title in Czech: Teorie interagujících dvojhvězd
• Thesis title in English: Theory of binary star interactions
• Academic year of topic announcement: 2021/2022
• Thesis type: dissertation
• Thesis language: čeština
• Department: Institute of Theoretical Physics (32-UTF)
• Supervisor: doc. Mgr. Ondřej Pejcha, Ph.D.
• Author: hidden - assigned and confirmed by the Study Dept.
• Date of registration: 15.09.2021
• Date of assignment: 15.09.2021
• Confirmed by Study dept. on: 16.09.2021

Guidelines

This thesis is focused on advancing the theory of binary star interactions. The immediate goal is to revisit the prescriptions for mass transfer in close binaries and investigate their influence on runaway phases of binary star evolution culminating in common envelope events. This evolutionary pathway is of great importance for producing many important astrophysical objects, including gravitational wave sources like binary black holes and double neutron stars. Depending on the interest of the student, this work will be extended and followed up with additional projects in single and binary star evolution or theoretical astrophysics in general. The tools of choice will be analytic and semi-analytic models, 1D stellar evolution calculations, numerical hydrodynamics potentially including radiation or magnetic fields, or N-body calculations. Participation in modeling of data, especially from the All-Sky Automated Survey for Supernovae, is possible.

References

Evolutionary Processes in Binary and Multiple Stars, by Peter Eggleton, ISBN 0521855578. Cambridge, UK: Cambridge University Press, 2006.
"Common Envelope Binaries" (https://ui.adsabs.harvard.edu/abs/1976IAUS...73...75P/abstract)
"Shock-powered light curves of luminous red novae as signatures of pre-dynamical mass-loss in stellar mergers" (https://ui.adsabs.harvard.edu/abs/2017MNRAS.471.3200M/abstract)
"Common envelope evolution: where we stand and how we can move forward" (https://ui.adsabs.harvard.edu/abs/2013A%26ARv..21...59I/abstract)
"Adiabatic Mass Loss in Binary Stars. I. Computational Method" (https://ui.adsabs.harvard.edu/abs/2010ApJ...717..724G/abstract)
"Adiabatic Mass Loss in Binary Stars. II. From Zero-age Main Sequence to the Base of the Giant Branch" (https://ui.adsabs.harvard.edu/abs/2015ApJ...812...40G/abstract)
"Mass transfer from giant donors" (https://ui.adsabs.harvard.edu/abs/2015MNRAS.449.4415P/abstract)
"Stability of mass transfer from massive giants: double black hole binary formation and ultraluminous X-ray sources" (https://ui.adsabs.harvard.edu/abs/2017MNRAS.465.2092P/abstract)
"It has to be cool: Supergiant progenitors of binary black hole mergers from common-envelope evolution" (https://ui.adsabs.harvard.edu/abs/2021A%26A...645A..54K/abstract)
"The role of mass transfer and common envelope evolution in the formation of merging binary black holes" (https://ui.adsabs.harvard.edu/abs/2021arXiv210309243M/abstract)
"A comparative study of the evolution of a close binary using a standard and an improved technique for computing mass transfer." (https://ui.adsabs.harvard.edu/abs/1990A%26A...236..385K/abstract)