Presentation #616.04 in the session Orbital Dynamics and Planet-Planet Interactions.
HAT-P-11 is a K4 star with two known planets: a closer super-Neptune with on a 5-day orbit, and an outer super-Jupiter on a 10-year orbit. In this work we present a joint orbit fit of HAT-P-11 system with astrometry and RV data, and a result of obliquity calculation between star A and planet c, and between planet b and planet c. We confirm planet c as an eccentric super-Jupiter, and present a lower mass limit for planet b of Mb sin ib = 0.073 Mjup. We also confirm a significant misalignment between both planets and the stellar spin axis, with planet b on a nearly perpendicular orbit of 106 degrees and planet c with a 33 degree misalignment. We show that planet-planet scattering is plausibly responsible for the eccentricity and stellar obliquity of planet c. Given this system misalignment, we show that ZLK migration driven by planet c can explain the present-day orbit of planet b. We present the full dynamical evolution of the system in a two-step process that represents, to our knowledge, the first specific case of planet-drive ZLK migration.