Unveiling TOI 2818C: A New Exoplanet Discovery, Insights into Hot Jupiters, and the Dynamics of Planetary Systems
In this bonus episode of SpaceTime featuring the full, unedited Interview, we delve into the exciting discovery of a potential new exoplanet, TOI 2818C, located over a thousand light years away in the constellation Papus. This intriguing planetary candidate is estimated to be 10 to 16 times the size of Earth and completes its orbit in less than 16 Earth days. We discuss the innovative transit timing variations method that led to this discovery, revealing the presence of this companion planet alongside the hot Jupiter TOI 2818b, and its implications for our understanding of planetary formation in hot Jupiter systems.
Understanding Hot Jupiters
We explore the unique characteristics of hot Jupiters and the rarity of finding companion planets within their systems. As we analyze the dynamics involved when multiple planets influence each other's orbits through gravitational interactions, we uncover the challenges astronomers face in deciphering these complex systems.
Planetary Formation Theories
Additionally, we examine the ongoing debates surrounding the formation of hot Jupiters, including the theories of cold and hot migration. These concepts help explain how these gaseous giants, which were the first exoplanets discovered, can exist so close to their host stars and provide insight into the broader mechanisms of planet formation.
00:00 Space Time Series 28 Episode 39 for broadcast on 30 March 2025
00:49 Discovery of exoplanet TOI 2818C
06:30 Explanation of transit timing variations method
12:15 Insights into the dynamics of hot Jupiter systems
18:00 Theories of planetary formation: cold vs. hot migration
22:45 Challenges in characterizing exoplanets with TESS
27:00 Summary of recent developments in exoplanet research
30:15 Discussion on the implications for our solar system's formation
www.spacetimewithstuartgary.com
www.bitesz.com
🌏 Get Our Exclusive NordVPN deal here ➼ www.bitesz.com/nordvpn. Enjoy incredible discounts and bonuses! Plus, it’s risk-free with Nord’s 30-day money-back guarantee! ✌
Check out our newest sponsor - Old Glory - Iconic Music and Sports Merch and now with official NASA merchandise. Well worth checking out...
Become a supporter of this Podcast for as little as $3 per month and access commercial-free episodes plus bonuses: https://www.spacetimewithstuartgary.com/about
✍️ Episode References
Astrophysical Journal
https://iopscience.iop.org/journal/1538-4357
NASA Transiting Exoplanet Survey Satellite (TESS)
https://tess.gsfc.nasa.gov/
Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.
00:00 Discovery of TOI 2818C exoplanet
05:29 Transit timing variations method explained
10:26 The dynamics of hot Jupiter systems
12:02 Theories of planetary formation explored
13:35 Challenges in characterizing exoplanets with TESS
15:13 Implications for our solar system's formation history