4 citations · 4 across the 3 of their papers we have counts for
7 papers
Planetary migration
Philip J. Armitage, W. K. M. Rice
Gravitational torques between a planet and gas in the protoplanetary disk result in orbital migration of the planet, and are likely to play an important role in the formation and e…
On the stability of self-gravitating protoplanetary discs
W. K. M. Rice, P. J. Armitage, I. A. Bonnell +1
It has already been shown, using a local model, that accretion discs with cooling times t_cool <= 3 Omega^-1 fragment into gravitationally bound objects, while those with cooling t…
Orbital migration and the brown dwarf desert
Philip J. Armitage, Ian A. Bonnell
The orbital elements of extreme mass ratio binaries will be modified by interactions with surrounding circumstellar disks. For brown dwarf companions to Solar-type stars the result…
Ab initio simulations of accretion disc boundary layers
Philip J. Armitage
I discuss the results of simplified three dimensional magnetohydrodynamic simulations of the boundary layer between a disc and a non-rotating, unmagnetized star. Strong magnetic fi…
Eccentric extrasolar planets from resonant Saturn mass companions
Philip J. Armitage, Mario Livio, S. H. Lubow +1
Withdrawn in current form.
Suppression of giant planet formation in stellar clusters
Philip J. Armitage
Photoevaporation driven by the ultraviolet radiation from massive stars severely limits the lifetime of protoplanetary discs around stars formed within stellar clusters. I investig…