Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...267..397d&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 267, no. 2, p. 397-409.
Astronomy and Astrophysics
Astrophysics
81
Binary Stars, Space Density, Star Distribution, Stellar Evolution, White Dwarf Stars, Mathematical Models, Monte Carlo Method, Planetary Nebulae, Stellar Orbits
Scientific paper
A Monte Carlo type simulation was used to calculate theoretical predictions of formation rates, space densities, and properties of magnitude- and color-selected observational samples of close detached white dwarf + main sequence binaries, sdOB + main sequence binaries, and double cores of planetary nebulae. In the simulation, a large number of zero-age binaries is created, with a distribution of orbital parameters as inferred from observations, and the evolution of these binaries is followed using simple analytical fits to detailed calculations of binary evolution from the literature. It is shown that the properties of these binaries depend significantly on assumptions that have to be made in binary evolution. Thus, this method is a good tool for constraining these assumptions.
de Kool Martijn
Ritter Hans
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