Contributions > By speaker > Nabavinezhad Hadiseh

Recent discoveries reveal tightly packed inner planets near their host star. To understand their formation and evolution, we study the Kepler-80 system, a K-dwarf star hosting six super-Earths. Using N-body simulations, we analyze migration mechanisms and the impact of disc parameters on resonance chains and system stability. Our results show that gaps at the inner disk edge cause instability, requiring consideration of unsaturated torques. Systems like Kepler-80 typically form with an aspect ratio of ~0.03, but our simulations indicate enhanced stability at 0.05, reducing to 0.03 due to disk flaring. This research emphasizes Lindblad torque's role in slowing migration, enabling stable resonance chains.