517 citations · 12.3k across the 161 of their papers we have counts for
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EXor outbursts from disk amplification of stellar magnetic cycles
Philip J. Armitage
EXor outbursts - moderate-amplitude disk accretion events observed in Class I and Class II protostellar sources - have time scales and amplitudes that are consistent with the visco…
Planet Formation Imager (PFI): science vision and key requirements
Stefan Kraus, John D. Monnier, Michael J. Ireland +75
The Planet Formation Imager (PFI) project aims to provide a strong scientific vision for ground-based optical astronomy beyond the upcoming generation of Extremely Large Telescopes…
Prompt planetesimal formation beyond the snow line
Philip J. Armitage, Josh A. Eisner, Jacob B. Simon
We develop a simple model to predict the radial distribution of planetesimal formation. The model is based on the observed growth of dust to mm-sized particles, which drift radiall…
Tidal disruption events from supermassive black hole binaries
Eric R. Coughlin, Philip J. Armitage, Chris Nixon +1
We investigate the pre-disruption gravitational dynamics and post-disruption hydrodynamics of the tidal disruption of stars by supermassive black hole (SMBH) binaries. We focus on…
Turbulence, Transport and Waves in Ohmic Dead Zones
Daniel Gole, Jacob B. Simon, Stephen H. Lubow +1
We use local numerical simulations to study a vertically stratified accretion disk with a resistive mid-plane that damps magnetohydrodynamic (MHD) turbulence. This is an idealized…
Planet-disc evolution and the formation of Kozai-Lidov planets
Rebecca G. Martin, Stephen H. Lubow, Chris Nixon +1
With hydrodynamical simulations we determine the conditions under which an initially coplanar planet-disc system that orbits a member of a misaligned binary star evolves to form a…