Planet formation and migration in extreme planetary systems

Henry Ngo (Herzberg Institute of Astrophysics)
Event Date and Time: 
Mon, 2018-03-19 15:00 - 16:15
Hennings 318
Local Contact: 
Jaymie Matthews
Intended Audience: 
Discoveries of exoplanetary systems in the last two decades have revealed the diversity of planetary systems in our Galaxy. Due to their large masses and radii, giant planets are often the first planets discovered with each new planet-finding technique. Two giant planet classes on extreme orbits have raised new challenges for planet formation and migration models: the hot Jupiters found on close-in orbits and the directly imaged giant planets detected on wide orbits. In this talk, I will summarize the results of the “Friends of hot Jupiters” campaign, where I led an imaging survey to constrain the role of stellar companions in the dynamical evolution of hot Jupiters. I will also discuss my current project investigating the origin of the other extreme end of giant planets. Using a near-infrared vector vortex coronagraph, I am searching for directly imaged giant planets orbiting young M-dwarf stars.
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