Click for larger image (Credit: www.jonlomberg.com)

ORIGINS AND DIVERSITY OF PLANETARY SYSTEMS

Searches for extrasolar planets have revealed a remarkable diversity of worlds, from scorching super-Earths to far-out super-Jupiters, and challenged our preconceptions many times over. We investigate their origins and evolution through observational studies of protoplanetary and debris disks in single and multiple star systems.  

 


Click for larger image (Credit: NASA/JPL)

Detection and Characterization of Exoplanets AND PLANETARY SYSTEMS

Using high-precision observational techniques, we do ‘remote sensing’ of alien planets seen in transit and via direct imaging. Back in 2008, we reported one of the first planetary mass companions to a normal star discovered through imaging and confirmed through spectroscopy and proper motion. More recently, we have measured the changing phases of hot Jupiters with Kepler, investigated orbital dynamics with TESS, conducted a high-resolution spectroscopic survey of exoplanet atmospheres with Gemini, and participate in guaranteed-time observations of exoplanets with NIRISS on the James Webb Space Telescope.


Click for larger image (Credit: www.jonlomberg.com)

Formation and Evolution of Brown Dwarfs and Stars

Brown dwarfs straddle the mass range between stars and planets, and share characteristics with both. In a series of papers, we established that young brown dwarfs, even down to planetary masses, are surrounded by accretion disks, similar to their stellar counterparts, and probably form the same way. Our SONYC project is explored brown dwarfs in star-forming regions. We also conducted a large, comprehensive variability survey of cool brown dwarfs, and discovered evidence of extreme weather as well as the first triple system of T dwarfs. We co-lead a guaranteed-time observation program on the James Webb Space Telescope that aims to discover and characterize the lowest-mass free-floating objects in a young star cluster.


 

Research Group

 

Jake Turner Postdoctoral Fellow

Jake Turner
NASA Sagan Fellow

Laura Flagg
Postdoctoral Fellow

Andrew Ridden-Harper
Postdoctoral Fellow

Emily Deibert
Graduate Student

Nicole Hao
Undergraduate Student

Antonia Peters
Undergraduate Summer Student

Former Group Members

Postdoctoral Fellows

➣ Mariangela Bonavita
Alexis Brandeker (jointly with Prof. Marten van Kerkwijk)
Neil Cook
Thayne Currie
Sebastian Daemgen
Ernst de Mooij
Paul Elliott
Vincent Geers
Karl Haisch, Jr.
Élodie Hébrard
Markus Janson
Veselin Kostov
David Lafreniere (jointly with Prof. Marten van Kerkwijk)
Kora Muzic
Aleks Scholz
Laura Venuti (short-term, Fall 2018)


Ph.D. Students

Bryce Croll (jointly with Prof. Norm Murray)
Lisa Esteves
Miranda Herman (jointly with Prof. Yanqin Wu)
Duy Nguyen (jointly with Prof. Marten van Kerkwijk)
Jacqueline Radigan


Graduate Projects

➣ Mirza Ahmic
➣ Rebecca Billmeier
Ivana Damjanov.ca/research/profiles/faculty/Damjanov49.html
➣ Laura Fissel
Abhinav JIndal
➣ Parandis Khavari
➣ Erin Mentuch (jointly with Prof. Marten van Kerkwijk)
➣ Eliot Meyer
Keavin Moore (MSc)
➣ Bryn Orth-Lashley
➣ Sarah Ragan
➣ Ari Silburt
Louise Yu (visiting student from IRAP)

Undergraduate Projects

➣ Daniel Clouston
➣ Ryan Cloutier
➣ Jaime Coffey
Eve Lee
➣ Yevgeny Liokumovich
Charlotte Minsky
➣ Yutong Shan
➣ Sarah Springsteen
➣ Natasha Wolansky
➣ Xiaoying Xu