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My work is focussed on star formation, especially using young stellar populations as a fossil record to learn about the physical processes that guide it. Young stars retain the motions of their parent clouds after formation, so with accurate present-day positions, velocities, and ages, we can reconstruct where star formation has occurred, and how one star-forming event relates to the next. To this end, I have led the SPYGLASS program (Stars with Photometrically Young Gaia Luminosities Around the Solar System), a series of papers detailing my work discovering young stars, grouping them into populations, and using those populations to gain insight into how star formation initiates, propagates, and terminates. Through SPYGLASS, I have produced two of the most complete young stellar association surveys to date, and published five additional papers that investigate individual star-forming regions, and the star formation patterns that exist within. For more information on SPYGLASS surveys, click HERE, and for more information on studies of local star formation, click HERE

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I am also involved in several active collaborations, which are detailed HERE.These generally cover complementary fields to my work, including Herbig-Haro object studies with Travis Rector (University of Alaska - Anchorage) and Lisa Prato ​(Northern Arizona University), work with the STARFORGE collaboration using simulations to learn about young stellar associations, several projects to refine the ages of young associations, and the THYME (TESS Hunt for Young and Maturing Exoplanets) collaboration, which searches for young planets. 

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 Some past work during my undergraduate program covers a wider range of topics related to star and planet formation, and it is detailed HERE . Follow the links below for further information on any of these topics, or click HERE to see my work on NASA ADS!

OVERVIEW

Email: ronan.kerr [at] utoronto [dot] ca

© Ronan Kerr 2026

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