Structure of the circumbinary envelopes of young binary stars with elliptical orbits

Details Structure of the circumbinary envelopes of young binary stars with elliptical orbits Structure of the circumbinary envelopes of young binary stars with elliptical orbits

Sep 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011arep...55..793s&link_type=abstract

Astronomy Reports, Volume 55, Issue 9, pp.793-800

Astronomy and Astrophysics

Astronomy

Scientific paper

The results of two-dimensional gas-dynamical numerical simulations of the structure of matter flows in the envelopes of a number of T Tauri binary systems with elliptical orbits are considered. The main flow elements in inner regions of protoplanetary disks of these stars are described. The influence of shocks on the size of the gap—a rarified region in the inner parts of the protoplanetary disk—is analyzed. A method is proposed for estimating the size of this gap from the numerical simulations, and the gap sizes for the studied stars are determined and compared with observational results. The flow dynamics in the gap is considered, and the periodic variations of the gap size on time scales of several orbital periods are analyzed. Possible observational manifestations of the studied flows are discussed.

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