Research Interests

Exoplanets, habitability, astrobiology, dynamics of planetary systems


PHY 163: Stars and the Universe (Fall 2021)
Astro 5: The Sky and Planets (Fall 2019, Fall 2020)
Astro 297: Astronomy Communication (Fall 2019, Spring 2020)
Astro 1: Astronomical Universe (Summer 2018)

Current Advisees

Michael Polania (undergraduate), Leonard Feil (undergraduate), Phoebe Sandhaus (graduate)


First author:

A Five-Planet Resonant Chain: Reevaluation of the Kepler-80 System, MacDonald, M. G., Shakespeare, C. J., and Ragozzine, D., 2021, AJ
Forming Diverse Super-Earth Systems in Situ, MacDonald, M. G., Dawson, R. I., Morrison, S. J., Lee, E. J., and Khandelwal, A, 2020, ApJ, 891, 20
Examining the Radius Valley: a Machine Learning Approach, MacDonald, M. G. , 2019, MNRAS, 487, 4
Three Pathways for Observed Resonant Chains, MacDonald, M. G.  and Dawson, R. I., 2018, AJ, 156, 5
A Dynamical Analysis of the Kepler-80 System of Five Transiting Planets, MacDonald, M. G., Ragozzine, D., Fabrycky, D. C., et al. 2016, AJ, 152, 105 

Second author

A Statistical Analysis of the Nulling Pulsar Population, Sheikh, S. Z. and MacDonald, M. G., 2021, MNRAS, 502, 4
Confirming the Longest 3:2 Resonant Chain of K2-138, Feil, L., MacDonald, M. G., Quinn, T., and Rice, D., 2021, submitted
Challenges of Radial Velocity Characterization of Systems with Tightly-spaced Inner Planets, Ragozzine, D. A., MacDonald, M. G., Tognetti, L. A., et al.,  submitted

Third+ author

Chains of Planets in Mean Motion Resonances Arising from Oligarchic Growth, Morrison, S., Dawson, R. I, and MacDonald, M. G., 2020, ApJ, 904, 157
The Orbital Eccentricity of Small Planet Systems, Van Eylen, V., Albrecht, S., Huang, X., MacDonald, M. G., et al. 2019, AJ, 157, 61