Dynamics of astrophysical discs
DAD
8 January 1998 to 3 July 1998
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Programme theme
Many astrophysical systems, over a vast range of length scales, consist of matter organised in differentially rotating, centrifugally supported discs. Such systems include planetary rings, protostellar discs (which provide the environment from which planets may form), close binary star systems, and normal and active galaxies. Understanding the structure and evolution of astrophysical discs is therefore of central importance in astronomy. Discs may sometimes be modelled as collections of discrete particles, and this leads to the study of collisionless many body problems. Other studies treat the disc as a differentially rotating turbulent fluid, possibly containing a magnetic field. The effects of self-gravitation may also need to be taken into account. The programme will bring together experts from relevant areas in astrophysics and mathematicians and scientists familiar with appropriate analytic methods and numerical simulation techniques, including the solution of differential or integro-differential equations. The aim is to make progress with the different approaches, and, in particular, to advance our understanding of the connections between them.
Click here to download the programme's final scientific report
Preprints
| Title | Year | Programme |
|---|---|---|
Resonant thickening of disks by small satellite galaxiesAuthors: JA Sellwood, RW Nelson, S Tremaine |
1997 | DAD |
The effect of an isothermal atmosphere on the propagation of three-dimensional waves in a thermally stratified accretion diskAuthors: GI Ogilvie, SH Lubow |
1997 | DAD |
Differential rotation and turbulence in extended H I disksAuthors: JA Sellwood, SA Balbus |
1997 | DAD |
On nonlinear dynamics of 3D astrophysical disksAuthors: AM Fridman, OV Khoruzhii |
1997 | DAD |
Accretion disk turbulenceAuthors: CF Gammie |
1997 | DAD |
Advection dominated accretion flows in the Kerr metric: II. Steady state global solutionsAuthors: R Popham, CF Gammie |
1997 | DAD |
What is the accretion rate in NGC 4258?Authors: CF Gammie, R Narayan, R Blandford |
1997 | DAD |
Photon bubbles in accretion disksAuthors: CF Gammie |
1997 | DAD |
Kinetic and structural evolution of self-gravitating, magnetized clouds: 2.5-dimensional simulations of decaying turbulenceAuthors: EC Ostriker, CF Gammie, JM Stone |
1997 | DAD |
On the formation of disk galaxies and massive central objectsAuthors: JA Sellwood, EM Moore |
1997 | DAD |
The response of accretion disks to bending waves: angular momentum transport and resonancesAuthors: C Terquem |
1997 | DAD |
Precession of collimated outflows from young stellar objectsAuthors: C Terquem, J Eisloffel, JCB Papaloizou, ET Al |
1997 | DAD |
Critical protoplanetary core masses in protoplanetary disks and the formation of short-period giant planetsAuthors: JCB Papaloizou, C Terquem |
1997 | DAD |
The response of a turbulent accretion disc to an imposed epicyclic shearing motionAuthors: U Torkelsson, GI Ogilvie, A Brandenburg, ET Al |
1997 | DAD |
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