Astronomy Colloquium - Luke Bouma

Circumbinary Planet - a planet orbiting two stars
February 15, 2024
3:00PM - 4:00PM
In Person & Online: Chem & Biomolecular Eng & Chem (CBEC) - Room 130; Zoom Webinar

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Add to Calendar 2024-02-15 15:00:00 2024-02-15 16:00:00 Astronomy Colloquium - Luke Bouma Title: Evolution of Exoplanets and their Broader EnvironmentsAbstract:Over the past three decades, exoplanet science has revealed planetary archetypes with a wide range of sizes, compositions, and orbital characteristics.  A major frontier in the study of these exoplanets aims to measure their properties and to understand how those properties result from the processes of star and planet formation.  While the earliest formation stages are challenging to observe directly, a suite of ground and space-based telescopes is beginning to clarify the processes — both planetary and stellar — that occur shortly after the protoplanetary disk disperses.  In this talk, I will discuss some recent advances, highlighting: (i) young transiting exoplanets that orbit close to their host stars, (ii) the dissolving stellar associations that harbor such exoplanets, and (iii) the circumstellar environments of young stars.  In particular, I will close by highlighting a novel type of optically periodic variable star whose behavior points to unexpected physical processes happening in the magnetospheres of young M dwarfs.Speaker: Luke Bouma (California Institute of Technology) In Person & Online: Chem & Biomolecular Eng & Chem (CBEC) - Room 130; Zoom Webinar Department of Astronomy astronomy@osu.edu America/New_York public

Title: Evolution of Exoplanets and their Broader Environments

Abstract:

Over the past three decades, exoplanet science has revealed planetary archetypes with a wide range of sizes, compositions, and orbital characteristics.  A major frontier in the study of these exoplanets aims to measure their properties and to understand how those properties result from the processes of star and planet formation.  While the earliest formation stages are challenging to observe directly, a suite of ground and space-based telescopes is beginning to clarify the processes — both planetary and stellar — that occur shortly after the protoplanetary disk disperses.  In this talk, I will discuss some recent advances, highlighting: (i) young transiting exoplanets that orbit close to their host stars, (ii) the dissolving stellar associations that harbor such exoplanets, and (iii) the circumstellar environments of young stars.  In particular, I will close by highlighting a novel type of optically periodic variable star whose behavior points to unexpected physical processes happening in the magnetospheres of young M dwarfs.

Speaker: Luke Bouma (California Institute of Technology)

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