The Diversity of Exoplanets

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Overview

The discovery of extra-solar planets orbiting other stars has been one of the major breakthroughs in astronomy of the past decades, changing our view on the formation of planetary systems, mainly drawn from the observation of the Solar System. Today, over 860 exoplanets are known and the Kepler satellite has recently identified over 2700 additional candidates, most of them awaiting for confirmation. We have learned that exoplanets are extremely common objects in the Universe and that planetary systems are much more diverse than originally predicted.

Our knowledge about exoplanets has dramatically increased thanks to the systematic monitoring of stars in the solar neighborhood by radial velocities, photometry, microlensing, and recently direct imaging, bringing valuable constraints to planet formation theories, as well as to models of planet interior structure, and atmosphere physics. In this course, we will review the main discoveries, describe the different approaches to detect exoplanets and characterise their orbital and physical properties.

Syllabus

Week 1 - Introduction: History and context  
Week 2 - Planet detection I: the mass and orbital characterisation of systems
Week 3 - Planet detection II: the power of transit  
Week 4 - Statistical results I: mass‐separation‐radius  
Week 5 - Statistical results II: orbital characteristics and architecture of systems  
Week 6 - Observational approach to planetary atmospheres