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Interaction of young binaries with protostellar disks

  • Pawel Artymowicz
  • Stephen H. Lubow
Part II: Disks—Theory
Part of the Lecture Notes in Physics book series (LNP, volume 465)

Abstract

We discuss the dynamical interacton between young binary stars and their protostellar accretion disks. We concentrate on circumbinary disks, which may play a major role in endowing the forming binary with its final (main-sequence) orbital characteristics. The new phenomena reported in this paper include the gap eccentricity and tidal stream formation. The latter phenomenon, effective in disks which have thickness-to-radius ratio of order 0.1, is responsible for the mass transfer from the circumbinary to the circumstellar environment, which equalizes stellar masses. In the following order, we discuss: observations of young binary systems with disks, tidal versus resonant disk perturbation, the special role played by the (m,l)=(2,1) harmonic of potential, resonant theory of gap sizes, orbital evolution of the binary, dynamically cold disks with eccentric gaps, and warm disks with tidal streams, with application to GG Tau.

Keywords

Smooth Particle Hydrodynamic Binary Star Smooth Particle Hydrodynamic Simulation Spiral Density Wave Smooth Particle Hydrodynamic Model 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • Pawel Artymowicz
    • 1
  • Stephen H. Lubow
    • 2
  1. 1.Stockholm ObservatoryStockholm UniversitySaltsjöbadenSweden
  2. 2.Space Telescope Science InstituteBaltimoreUSA

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