Dynamical biasing in binary star formation - Implications for brown dwarfs in binaries

Details Dynamical biasing in binary star formation - Implications for brown dwarfs in binaries Dynamical biasing in binary star formation - Implications for brown dwarfs in binaries

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.262..800m&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 262, no. 3, p. 800-804.

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60

Binary Stars, Brown Dwarf Stars, Computational Astrophysics, Star Formation, Astronomical Models, Pre-Main Sequence Stars, Star Clusters

Scientific paper

We present a natural scenario that provides a steep turnover of the initial mass function of brown dwarfs in binaries without a turnover of the real initial mass function at the hydrogen-burning mass limit. Such behavior results from a prescription that approximately mimics the formation of binaries through dynamical capture within small clusters of premain-sequence stars: clusters of stars are drawn at random from the mass function and, in each cluster, the two most massive stars form a binary. We also derive a number of general properties of the resultant binary population (e.g., the mass ratio distribution and the binary fraction as a function of mass) that can be tested by future observations.

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