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Astronomy Colloquium - James Owen

Kepler 186f a near-Earth sized planet around a red dwarf star
March 9, 2017
2:30 pm - 3:30 pm
1005 Smith Laboratory

The Kepler Planets: A Tale of Evaporation 

James Owen: Institute for Advanced Study 

The Kepler mission has transformed our knowledge of the properties of extra-solar planets. It has told us a dominant - perhaps the dominant - population of exoplanets are those close to their parent stars with masses in the range 1-20 Mearth. Unlike the low-mass, close-in planets in our solar system these exoplanets are thought to contain voluminous H/He envelopes. I will discuss the evolution of this population of exoplanets, particularly with regard to mass-loss. It appears that as soon as these planets finish forming, and their parent disc disperses they begin a lifelong period of mass-loss and evaporation which imprints itself on the population we see today.

Coffee and Donuts served at 2:00pm in 4054 McPherson Lab. 

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