TESS Warm Jupiters and Their Companions

  • CART Astrophysics Seminar Series

October 24, 2024 2:00 PM
PAIS 3205

Host:
Diana Dragomir
Presenter:
Ismael Mireles
There are now over 5700 confirmed exoplanets, but many questions remain regarding how planets form and evolve. Over 2400 of these planets are part of multi-planet systems, yet no system discovered so far resembles our own solar system. Nonetheless, multi-planet systems are essential to probe planet formation and evolution. In particular, systems with warm gas giant planets are promising as these planets bridge the gap between the well-studied hot gas giant population and the cold gas giants in our solar system. The launch of the Transiting Exoplanet Survey Satellite (TESS) has led to the discovery of dozens of warm Jupiters, increasing the existing sample by nearly 70%. Additionally, many of these planets orbit bright stars that are ideal for follow-up observations to characterize their masses, orbits, and atmospheres as well as to search for additional planets. I present my current and future work to characterize these systems and detail three specific warm Jupiter systems - TOI-1670, TOI-201, and TOI-4127 - and describe what we have learned about them, and what we stand to learn with future observations. I also present my ongoing work to determine the occurrence rate of small planets in TESS warm Jupiter systems and compare it to values from Kepler and values for hot Jupiter systems.

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