The formation and long-term evolution of circumbinary planetary systems across the H-R diagram

Session

Binary and triple systems evolution

Session 3

16 Jan 2025, 10:00

Fuligno Cenacle

18. Formation of free-floating planets from CB systems

Gavin Coleman

16/01/2025, 10:00

In recent years, free floating planets, i.e. those planets not found to be in a planetary system and with no observable companions, have begun to be found in microlensing and direct imaging surveys. Observations have shown that they have a wide variety of masses, ranging from terrestrial-like to giant planets. Microlensing surveys predict that there could be on order tens of free floating...

19. Long-term evolution of circumbinary exoplanets

Gabriele Columba

16/01/2025, 10:35

Notwithstanding the tremendous growth of the exoplanetary field in the last decade, circumbinary planets (CBPs) remain a small fraction of the total discoveries to date: around fifty CBPs have been identified out of nearly six thousand exoplanets, primarily detected through eclipse timing variations and transits. Almost a third of these orbit post-main-sequence stars, which suggests their...

20. Stellar Evolution in Planetary Systems: How White Dwarf Formation Kicks Can Reshape Orbital Architectures

Alexander Stephan

16/01/2025, 11:40

Observations of evolved stellar binaries over recent years have revealed that stars undergo a mild kick during their evolution into White Dwarfs, most likely caused by a slight asymmetry in their mass loss via stellar winds towards the end of the AGB phase. This kick has a significant impact on the dynamical evolution of stellar binaries and triples, which can cause such systems to separate,...

21. The Dynamical Evolution of Planets Orbiting Interacting Binaries

Santiago Torres

16/01/2025, 12:15

About 15% of solar-type stars are in such close binaries that interaction is bound to occur as the stars evolve and swell. Around 5600 planets have been detected in solar types of stars. However, only about twenty circumbinary planets have been identified. Understanding the intricate dynamics within such complex systems is crucial for unraveling the processes of planet formation and binary...