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Paper: Statistics and Dynamical Stability of Observed Triple Stars
Volume: 482, 10th Pacific Rim Conference on Stellar Astrophysics
Page: 95
Authors: Fang, X.
Abstract: In this paper, the dynamical stability of totally 127 observed triple stars and the statistical characteristics on mass parameters, orbital elements of these systems are studied. Using five stability criteria and numerical simulation of three-body evolution, most of the 127 triple stars are determined to be stable. The statistical conclusions on the observed systems are summarized: most of the observed triple stars have strong hierarchical configuration, the systems with very large period ratio usually have an inner eccentricity close to zero, most systems have two bodies with comparative mass and there is few system has a low mass third body. In the end of this paper, the stable systems with small parameters (e.g. small distance ratio, small eccentricity) are listed.
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