Ice Giant Systems Seminar Series

Discussing recent developments in topics related to the Ice Giant systems.

Each seminar will host a guest speaker, followed by a lively discussion and community updates & news.

Events are held on the second Tuesday of the month at 11:00 AM ET.

Stay Informed

Join the seminar eNews list to receive updates about future events.

If you no longer wish to receive Ice Giant Systems Seminar eNews, please click here to be taken to the unsubscribe page.

Upcoming Events

July 9, 2024 11:00 - 12:00 EDT

Orbital Stability and Age of the Inner Moons of Uranus

Webinar Zoom Link

Presenter: Dr. Matja Cuk (SETI)
Abstract: Uranus has 13 small moons interior to Miranda, most of which were discovered during the Voyager 2 flyby. It has been known for decades that some of these moons, notably the Portia group, may be unstable against mutual collisions on <100 Myr timescales. As new moons discovered using HST were added to the Voyager-era system, it appeared that some of the new additions, notably Cupid, are unstable on sub-Myr timescales. I will present our recent results (Cuk et al. 2022, AJ) which suggests that the Belinda group (Cupid, Belinda, Perdita) is stable on 50+ Myr timescales due to a newly recognized orbital resonance between Belinda and Perdita. We also confirm that the Portia group (Desdemona, Cressida, Juliet, Portia) is ultimately unstable, as found in prior work. I will discuss the implications of the short dynamical lifetimes and the existence of the Belinda-Portia resonance for the age of the moons, including the possibility that the inner moons of Uranus experience episodes of disruption and re-accretion.

Registration not yet open.


Related Documents:

August 13, 2024 11:00 - 12:00 EDT


Webinar Zoom Link

Presenter: Dr. Jessica Weber (Caltech/JPL)

Registration not yet open.


Related Documents:

Past Events

May 14, 2024 11:00 - 12:00 EDT

Cool Joules: Remote Sensing of the Ice Giants in the Thermal Infrared

April 9, 2024 11:00 - 12:00 EDT

The Ever-changing Ionosphere of Uranus

October 12, 2021 11:00 - 12:00 EDT

Small Moons and Rings of Neptune

View More Info >