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P
		
		
			
			Professor, CITA
n-body and hydro simulations, origin of galaxy spin, dark energy: 21cm cosmology, BAO, absorber acceleration. FRB and pulsars: gravitational waves, wave optics, lensing.Ph.D. 1995, Princeton
		
	
		
	Work Email: INTERNET
	Website: http://www.cita.utoronto.ca/~pen/
	
	
	
	
		
		
			
			Professor, Emeritus
Variable stars and stellar evolution; education and outreach.Ph.D. 1968, Toronto
		
	
		
	Work Phone: 416-978-2577work
	Work Email: INTERNET
	Website: http://www.astro.utoronto.ca/~percy/EPOindex.htm
	
	
	Biographical Info
I use variable stars to study the nature and evolution of stars. My current interest centers on
pulsating red giants and supergiants, which represent the semi-final stages of stars’ lives, and are poorly-understood, compared with other variable star types.  I use archival data, especially from the
American Association of Variable Star Observers (AAVSO), which stretches back for a century or more, edit the Journal of the AAVSO, and otherwise facilitate the contributions of skilled amateurs to
variable star research. I am also engaged in a wide variety of astronomy education and outreach projects.
One-pager from the 2023 Jamboree
		
		
			
			Supervisor: Jo Bovy
Galactic dynamics, stellar streams, dark matter, galaxy formation, large scale structure
		
	
		
	Work Email: INTERNET
	
	
	
	
		
		
			
			Supervisors: Hanno Rein + Marta Bryan
Exoplanet observations and evolution: direct imaging, high-resolution spectroscopy, dynamics
		
	
		
	Work Email: INTERNET
	Website: http://www.astro.utoronto.ca/~michael.poon/
	
	
	
	
		
		
	
		
	Work Email: INTERNET
	Website: https://mike-power666.github.io/
	
	
	Biographical Info
I was born and raised on Cape Breton Island in the province of Nova Scotia. My research is typically theoretical and computational, though I like including observational data whenever possible to stay grounded in reality. I’m interested in non-ideal magnetohydrodynamics and its applications to all aspects of star formation in astrophysics.



