On the distribution of orbital eccentricities for wide visual binary stars

Details On the distribution of orbital eccentricities for wide visual binary stars On the distribution of orbital eccentricities for wide visual binary stars

Mar 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998astl...24..178t&link_type=abstract

Astronomy Letters, Volume 24, Issue 2, March 1998, pp.178-179; Pis'ma v Astronomicheskii Zhurnal, Vol. 24, p. 217

Astronomy and Astrophysics

Astronomy

5

Scientific paper

We propose to determine the form of the eccentricity distribution for wide visual binaries from the distribution of the angle between the radius vector that connects the components and the vector of their relative motion. The available data indicate that the distribution of angles for physical binaries with periods ~10^3 - 10^4 years is uniform. We show that it corresponds to a linear distribution of eccentricities, f(e) = 2e, which is typical of systems that are formed by the breakup of small clusters or unstable multiple stars.

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