[Picture of John Lester]

John Lester

Department of Astronomy and Astrophysics
Address: University of Toronto Mississauga
Mississauga, Ontario
L5L 1C6, Canada
Telephone: 905 828-3818
Fax: 905 828-5425
E-mail: lester AT departmental mail server

Academic History

Undergraduate Teaching in 2007-2008

Research Interests

I am interested in the physical processes that occur in the atmospheres of individual stars. While stellar atmospheres are often used as tools for the study of "macro" topics, such as the evolution of the Galaxy or the extragalactic distance scale, and these applications interest me too, I am more intrigued by the "micro" astrophysics that takes place in the stellar atmosphere, which is an extremely complex boundary layer between the stellar interior and space. There are fundamental physical processes occurring in this environment that are still poorly understood because the scale, temperatures, pressures, velocities and magnetic fields cannot be recreated in terrestrial laboratories. My approach to these problems is primarily observational, although I also employ modeling.

Current Projects

Selected Publications

Former Graduate Students

Last updated: 24 August 2007