Title: Stellar obliquity of gas giant planets
Abstract:
The Rossiter-McLaughlin effect allows us to determine the stellar obliquity. This parameter is indicative of formation and evolutionary pathways of exoplanetary systems. In this talk, I will present stellar obliquity measurements of 14 gas giant planets obtained with high-resolution instruments and discuss their potential histories. Additionally, I will outline plans for upcoming atmospheric characterization using JWST and Ariel, highlighting how these observations will complement the obliquity findings. Furthermore, I will show ESPRESSO time series of HD 110067, resonant chain similar to TRAPPIST-1. The orbit of HD 110067c is well aligned. This result is indicative that the current architecture of the system has been reached through convergent migration without any major disruptive events. Finally, I detect rather small transit-timing variation in this system for the first time from a significant offset of 19 minutes.
Speaker:
Jiří Žák (ESO/Friedrich Schiller University)
