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The Formation of Close Binary Systems by Dynamical Interactions and Orbital Decay
Matthew R. Bate, Ian A. Bonnell, Volker Bromm
We present results from the first hydrodynamical star formation calculation to demonstrate that close binary stellar systems (separations $\lsim 10$ AU) need not be formed directly…
The Formation of a Star Cluster: Predicting the Properties of Stars and Brown Dwarfs
Matthew R. Bate, Ian A. Bonnell, Volker Bromm
We present results from the largest numerical simulation of star formation to resolve the fragmentation process down to the opacity limit. The simulation follows the collapse and f…
The effect of cooling on the global stability of self-gravitating protoplanetary discs
W. K. M. Rice, P. J. Armitage, M. R. Bate +1
Using a local model Gammie (2001) has shown that accretion discs with cooling times t_cool <= 3/Omega fragment into gravitationally bound objects, while those with cooling times t_…
Interactions of High and Low-Mass Planets with Protoplanetary Disks
Stephen H. Lubow, Matthew R. Bate, Gordon I. Ogilvie
We present three-dimensional numerical simulations of the interaction of a circular-orbit planet with a protoplanetary disk. We calculate the flow pattern, the accretion rate, and…
Astrometric signatures of self-gravitating protoplanetary discs
W. K. M. Rice, P. J. Armitage, M. R. Bate +1
We use high resolution numerical simulations to study whether gravitational instabilities within circumstellar discs can produce astrometrically detectable motion of the central st…
Viscous Effects on the Interaction between the Coplanar Decretion Disc and the Neutron Star in Be/X-Ray Binaries
A. T. Okazaki, M. R. Bate, G. I. Ogilvie +1
We study the viscous effects on the interaction between the coplanar Be-star disc and the neutron star in Be/X-ray binaries, using a three-dimensional, smoothed particle hydrodynam…
The Formation Mechanism of Brown Dwarfs
Matthew R. Bate, Ian A. Bonnell, Volker Bromm
We present results from the first hydrodynamical star formation calculation to demonstrate that brown dwarfs are a natural and frequent product of the collapse and fragmentation of…
The Excitation, Propagation and Dissipation of Waves in Accretion Discs: The Non-linear Axisymmetric Case
M. R. Bate, G. I. Ogilvie, S. H. Lubow +1
We analyse the non-linear propagation and dissipation of axisymmetric waves in accretion discs using the ZEUS-2D hydrodynamics code. The waves are numerically resolved in the verti…