Circumbinary disk evolution
By R. Guenther, W. Kley. 2002
136 citations recorded by the source corpus.
We study the evolution of circumbinary disks surrounding classical T Tau stars. High resolution numerical simulations are employed to model a system consisting of a central eccentric binary star within an accretion disk. The disk is assumed to be infinitesimally thin, however a detailed energy balance including viscous heating and radiative cooling is applied. A novel numerical approach using a parallelized Dual-Grid technique on two different coordinate systems has been implemented. Physical parameters of the setup are chosen to model the close system of DQ Tau and AK Sco, as well as the wider systems of GG Tau and UY Aur. Our main findings are for the tight binaries a substantial flow of material through the disk gap which is accreted onto the central stars in a phase dependent process. We are able to constrain the parameters of the systems by matching both accretion rates and derived spectral energy distributions to observational data where available.
Subfields: Astronomy and Astrophysics
View Paper: https://www.semanticscholar.org/paper/69d3a62dce5ad2e786f53211cdfe63cf93d3b7b6
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In Astronomy and Astrophysics
- Julian Krolik
- J. Hawley
- A. MacFadyen
- Ji-Ming Shi
- S. Lubow
- J. McKinney
- Ramesh Narayan
- Milos Milosavljevic
Citations in the corpus
- THREE-DIMENSIONAL MAGNETOHYDRODYNAMIC SIMULATIONS OF CIRCUMBINARY ACCRETION DISKS: DISK STRUCTURES AND ANGULAR MOMENTUM TRANSPORT (2011, methodology): “…disks with various binary mass ratios using either smoothed particle hydrodynamics (SPH; Artymowicz & Lubow 1996; Escala et al. 2005; Cuadra et al. 2009; Dotti et al. 2009) or grid-based methods (Bryden et al. 1999; Günther & Kley 2002; MacFadyen & Milosavljević 2008; de Val-Borro et al. 2011).”
- An Eccentric Circumbinary Accretion Disk and the Detection of Binary Massive Black Holes (2006, methodology): “…the smoothed particle hydrodynamics method (Artymowicz & Lubow 1994; Escala et al. 2005) and grid-based hydrodynamics with explicit bulk viscosity (Günther & Kley 2002) suggest that the surface density of a circumbinary disk drops sharply inward ofr ∼ 1.5 − 2a, 6 http://www.lsst.org wherea is the…”