Physics
Scientific paper
Aug 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982amjph..50..733n&link_type=abstract
American Journal of Physics, vol. 50, Aug. 1982, p. 733-738.
Physics
3
Binary Stars, Orbital Mechanics, Stellar Mass Ejection, Angular Momentum, Eccentric Orbits, Kepler Laws, Mass Transfer, Orbit Calculation, Orbital Elements, Statistical Analysis
Scientific paper
Mitalas's (1980) study is generalized to treat sudden mass loss from a binary syste in an originally elliptical orbit. The orbits are characterized by angular momentum and energy, and it is shown that none of the changes in the relative orbit depends on which object it is that loses part of its mass. It is pointed out that, in principle, each could lose a different fraction. Time averages are introduced so that the orbital changes, which depend on where in orbit the mass loss takes place, can be suitably averaged over a statistical ensemble of initial systems. Even though many results that appear to be new are presented, it is noted that the main thrust is to choose and manipulate variables yielding the greatest economy of description and the greatest power of computation. Graphs are included showing the fraction of systems that on the average will be disrupted, the mean orbital changes for the survivors, and the extreme limits for the change in eccentricity.
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