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

被引：20

作者：

Sytov, A. Yu. ^{[1
]}

Kaigorodov, P. V. ^{[1
]}

Fateeva, A. M. ^{[1
]}

Bisikalo, D. V. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Astron, Moscow V71, Russia

来源：

ASTRONOMY REPORTS | 2011年 / 55卷 / 09期

基金：

俄罗斯基础研究基金会;

关键词：

SEQUENCE SPECTROSCOPIC BINARIES; CO FUNDAMENTAL EMISSION; T-TAURI STARS; ACCRETION DISK; SYSTEM; EVOLUTION; GAPS; GAS;

D O I：

10.1134/S1063772911090071

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页码：793 / 800

页数：8

共 20 条

[1] DYNAMICS OF BINARY-DISK INTERACTION .1. RESONANCES AND DISK GAP SIZES [J].