The first detection of an exosatellite around a BD companion

by Prof. Alice Zurlo (Universidad Diego Portales - Chile)

Thursday 16 Jul 2026, 11:30 → 12:30 Europe/Rome

Sala Jappelli (Osservatorio astronomico di Padova)

In this seminar, I will present the latest results of the Millennium Nucleus of Young Exoplanets and their Moons (YEMS) team. We presented the first detection of an exosatellite around a BD companion. This discovery has been made with the use of the radial velocity technique, the same technique that was used to detect the first exoplanet around a solar-type star. In this case, the BD companion was the target of the radial velocity monitoring. We found a signal compatible with a sub-Jupiter mass satellite around the BD companion. 

I will also present the confirmation of the youngest exoplanet ever detected, around the star Elias 2-24. The planet is still forming, and it is detected within the protoplanetary disk. The confirmation of Elias 2-24 b, currently the youngest planet detected through high-contrast imaging, has important implications for planet formation timescales, demonstrating that giant planets can form through core accretion at separations of ~50 au within only ∼ 1 Myr, supporting the idea that such planets are responsible for the gaps observed in large and bright disks at these young ages.

 

Join Zoom Meeting  

 

https://unipd.zoom.us/j/82482883288?pwd=MVvmMWSGaiVrGMyAFOdyQG61OAcI7D.1

Meeting ID: 824 8288 3288 
Passcode: 072472