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The Statistical Effect of Encounters on Wide Binaries

Published online by Cambridge University Press:  12 April 2016

Ivan R. King
Ivan R. King*
Affiliation:
Astronomy Department University of California, Berkeley

Abstract

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Previous treatments by Ambartsumian and by Cruz-González are combined into a Fokker-Planck equation that describes the time evolution of the distribution of orbit sizes of a set of wide binaries, as encounters with field stars statistically change the orbits. A solution can be found that predicts the distribution of separations greater than about 3000 AU.

Resumen

Resumen

Resultados previos de Ambartsumian y de Cruz-González se combinan en una ecuación de Fokker-Planck que describe la evolución en el tiempo de la distribución de las dimensiones orbitales de un conjunto de binarias abiertas, cuando encuentros con estrellas de paso cambian estadísticamente las órbitas. Se encuentra una solución que predice la distribución de separaciones mayores que aproximadamente 3000 UA.

Type
Session 5
Information
International Astronomical Union Colloquium , Volume 33: Observational Parameters and Dynamical Evolution of Multiple Stars , May 1977 , pp. 167 - 168
Copyright
Copyright © Otto G. Franz and Paris Pismis 1977

References

Ambartsumian, V. A. 1937, Astron. Zhurn., 14, 207.Google Scholar
Chandrasekhar, S. 1944, Ap. J., 99, 54.Google Scholar
Cruz-González, C. 1965, thesis, Fac. de Cienc, Univ. Nac. Autónoma de Méx.Google Scholar