Numerical simulations of the GG Tau Circumbinary disk

A. Pierens , Anne Dutrey (1, 2, 3) , S. Guilloteau (1, 2, 3) , J.-M. Huré (1, 2, 3)

1 L3AB - Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux
2 OASU - Observatoire aquitain des sciences de l'univers
3 LAB - Laboratoire d'Astrophysique de Bordeaux [Pessac]

We present the first 2D hydrodynamical simulations of the GG Tau circumbinary disk including self-gravity. These simulations match on many points the physical properties deduced from observations. We show that self-gravity is probably very important for the dynamical evolution of the system. In particular, we find that self-gravity noticeably affects the structure of the disk, the accretion rate onto the central binary and the orbital evolution of the binary.

Domaines: Astrophysique galactique [astro-ph.GA]; Astrophysique galactique [astro-ph.GA]

A. Pierens, Anne Dutrey, S. Guilloteau, J.-M. Huré. Numerical simulations of the GG Tau Circumbinary disk. SF2A-2005: Semaine de l'Astrophysique Francaise, meeting held in Strasbourg, France, June 27 - July 1, 2005, Edited by F. Casoli, T. Contini, J.M. Hameury and L. Pagani. Published by EdP-Sciences, Conference Series, 2005, p. 733, 2005, Strasbourg, France. pp.733. ⟨hal-00417581⟩