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Criteria of Dynamical Isolation of Binaries and Multiples

Published online by Cambridge University Press:  25 May 2016

Ludmila Kiseleva  and
Joanna Anosova
Ludmila Kiseleva
Affiliation:
Institute of Astronomy, Madingley Rd., Cambridge CB3 0HA, UK
Joanna Anosova
Affiliation:
National Astronomical Observatory, 2-21-1 Osawa, Mitaka, Tokyo 181, Japan

Extract

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In order to obtain an objective criterion for dynamical isolation of binaries within systems of large multiplicity we study numerically the dynamical behavior and average parameters of stable hierarchical triple systems containing a close binary. Using the new criterion for hierarchical stability of triple systems with different mass ratios of components (Kiseleva, Eggleton, Anosova 1994; Kiseleva, Eggleton, Orlov 1994) the perturbing force from the outer body on the close inner binary is estimated. On this basis, the critical separations are obtained when both inner and outer orbits are practically not perturbed. Because the dispersion of masses has a very strong influence on dynamical processes in N-body systems, mass ratios of subsystems, and sometimes within subsystems, should always be taken into account.

Type
Chapter 6: How are we to Understand the Large Scale Structure of the ISM?
Information
Symposium - International Astronomical Union , Volume 169: Unsolved Problems of the Milky Way , 1996 , pp. 531 - 532
Copyright
Copyright © Kluwer 1996 

References

Anosova, J.P., Orlov, V.V. Astrophys. Space Sci., 1989, 161,209 Google Scholar
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Kiseleva, L.G., Eggleton, P.P., Anosova, J.P. (1994) Mon. Not. R. Astr. Soc. ,1994, 267, 161.Google Scholar
Kiseleva, L.G., Eggleton, P.P., Orlov, V.V. (1994) Mon. Not. R. Astr. Soc., 1994, in press Google Scholar