Turbulence regulates the rate of planetesimal formation via gravitational collapse, D.A. Gole, J.B. Simon, R. Li, A.N. Youdin, & P.J. Armitage, ApJ, submitted
Local simulations of heating torques on a luminous body in an accretion disk, A. Hankla, Y.-F. Jiang, & P.J. Armitage, ApJ, in press
A fast-growing tilt instability of detached circumplanetary disks, R.G. Martin, Z. Zhu, & P.J. Armitage, ApJL, 898, id. L26 (2020)
Predicting the long-term stability of compact multiplanet systems, D. Tamayo et al., PNAS, 117 (31), 18194 (2020)
Simulation of a compact object with outflows moving through a gaseous background, X. Li, P. Chang, Y. Levin, C.D. Matzner, & P.J. Armitage, MNRAS, 494, 2327 (2020)
Strongly magnetized accretion disks: structure and accretion from global magnetohydrodynamic simulations, B. Mishra, M.C. Begelman, P.J. Armitage, & J.B. Simon, MNRAS, 492, 1855 (2020)
Physical processes in protoplanetary disks (Armitage, 45th Saas-Fee Advanced Course "From Protoplanetary Disks to Planet Formation")
A brief overview of planet formation (Armitage, short introduction for the Handbook of Exoplanets)
The dispersal of protoplanetary disks (Alexander et al., Protostars and Planets VI, 2014)
The long-term dynamical evolution of planetary systems (Davies et al., Protostars and Planets VI, 2014)
Dynamics of protoplanetary disks (Armitage, ARA&A, 2011)
Lecture notes on the formation and early evolution of planetary systems (arXiv only)
Beyond work I enjoy hiking, often combined with photography. My main focus is landscapes, but over the years I've also made trips to photograph bears in some spectacular spots in Alaska.