#  ITC Seminar - Melinda Soares-Furtado (Princeton) 

 



####  calendar\_today Date and Time 

 **November 25, 2019** 

 12:00PM - 01:00PM EST 

####  pin\_drop Location 

 **Phillips**  



 

 



 

**Probing the Bulk Composition of Exoplanets with Engulfment Events**  
As a star evolves away from the main sequence and expands in size, close-orbiting substellar companions are engulfed in the process. While such events are not uncommon, the short tidal inspiral timescale makes it challenging to directly observe a planetary engulfment event. However, traces of engulfment can be observed long after the event has transpired. In my most recent work, I explore the strength and survival time of the 7Li enrichment signature in the convective envelopes of cannibal stars. I demonstrate that engulfment signatures are observable at 5-sigma confidence levels up to one billion years after the engulfment event. I describe how cannibal stars can help us refine our understanding of planet formation and stellar evolution. 

 

 



 

 See also:- [ 2019 - 20 ](/academic-year/2019-20)
- [ Seminars ](/event-type/seminars)
 
 

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