Planetary Systems and Their Origins Research Group

RESEARCH TOPIC

Since the discovery of exoplanets there is a growing research in our group aiming at the formation and early evolution of exoplanetary systems. One of the major fields in our group is the investigation of planet formation processes in protoplanetary accretion discs. We have already obtained significant results in explaining the formation of resonant planetary systems, moreover we carry on an intensive research to reveal planet formation in pressure maxima of protoplanetary discs. Our investigations are strongly motivated by the ring-like structures observed in submillimeter emission of cold dust on ALMA images, which are assumed to be preferential places for planet formation. In our group we are also aiming at developing a complete numerical model that describes the formation and early evolution of planetary systems including the gravitational and collisional evolution of the planetary embryos, the planet-disc interactions, and the time evolution of the surface density of the disc's  gaseous and solid component.

In our group we also investigate the dynamics of the Solar Systems and exoplanetary systems. We study the long-term dynamical evolution of the small bodies in the Solar System, the dynamical stability of resonant and multiple planetary systems. In our investigations we recently study the chaotic diffusion of orbits, and based on the diffusion coefficient, we determine the stabilty time of the given planetary system.

MEMBERS

CONTACT

Webpage of the research group:  Planetary Systems and Their Origins Research Group