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Astronomy Colloquium - "On the Geometry of Exoplanet Systems"

Event Type
Department of Astronomy
Kaler Classroon, Astronomy Building
Apr 4, 2023   3:45 pm  
Songhu Wang, Indiana University
Rebecca Bare
Originating Calendar
Astronomy Colloquium Speaker Calendar

The exoplanetary field has been replete with remarkable discoveries, perhaps the two most intriguing findings have been the startling abundance of super-Earths – a type of world entirely missing from our solar system, and the detection of hot Jupiters – giant planets orbiting perilously close to their parent stars. The mere existence of these worlds was wholly unpredicted based on the expectations that were gleaned from centuries of observation of our own solar system. In this talk, I will summarize the observing geometry (e.g., Multiplicity, Obliquity, and intra-system Similarity) of exoplanet systems, and thereby address critical gaps currently facing exoplanet research: How did hot Jupiters show up in their current locations? How does a huge population of super-Earths arise in the inner terrestrial zone of the average star? and how can we fit our Solar System into the big picture?

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