Brian Charles Chaboyer

Academic Appointments

Professor of Physics and Astronomy

Brian Chaboyer is an astrophysicist who studies stars and stellar populations. He has been at Dartmouth College since 1998. His undergraduate degree is from the University of Manitoba, (1987) followed by a MSc from Queen's University (Canada; 1989) and a doctoral degree from Yale University (1993). Brian came to Dartmouth after a postdoctoral fellowship at the Canadian Institute for Theoretical Astrophysics and a Hubble Fellowship at the University of Arizona.


Wilder, Room 249
HB 6127


Physics and Astronomy


  • B.Sc. University of Manitoba
  • M.Sc. Queen's University
  • M.Phil. Yale University
  • Ph.D. Yale University

Selected Publications

  • Chaboyer, B., B. E. McArthur, E. O'Malley, G. F. Benedict, G. A. Feiden, T. E. Harrison, A. McWilliam, E. P. Nelan, R. J. Patterson, and A. Sarajedini. "Testing Metal-Poor Stellar Models and Isochrones with HST Parallaxes of Metal-Poor Stars." The Astrophysical Journal 835, no. 2 (2017): 152.

  • O'Malley, Erin M., Christina Gilligan, and Brian Chaboyer. "Absolute Ages and Distances of 22 GCs Using Monte Carlo Main-Sequence Fitting." The Astrophysical Journal 838, no. 2 (2017): 162.

  • O'Malley, Erin M., Andrew McWilliam, Brian Chaboyer, and Ian Thompson. "A Differential Abundance Analysis of Very Metal-Poor Stars." The Astrophysical Journal 838, no. 2 (2017): 90.

  • Krauss, L M, and B Chaboyer, "Age Estimates of Globular Clusters in the Milky Way: Constraints on Cosmology," Science , 299 no. 5603 (January 2003) 65-69.

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Works In Progress

"Hubble Space Telescope Parallaxes of Metal-Poor Stars"; New Models of M Dwarf Stars; Stellar Evolution: The Next Dimension