The formation mass of a binary system via fragmentation of a rotating parent core with increasing total mass

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Abstract

© Copyright 2016: Instituto de Astronoḿa, Universidad Nacional Autónoma de México. We present a set of numerical simulations of the gravitational collapse of a uniform and rotating core, in which azimuthal symmetric mass seeds are initially implemented in order to favor the formation of a dense filament, out of which a binary system may be formed by direct fragmentation. We observe that this binary formation process is diminished when the total mass of the parent core M0is increased; then we increase the level of the ratio of rotational energy to the gravitational energy, denoted by β, initially supplied to the rotating core, in order to achieve the desired direct fragmentation of the filament. We measure the binary mass Mfobtained from an initial M0and then show a schematic diagram M0vs β, where the desired binary configurations are located. We also report some basic physical data of the fragments.
Original languageAmerican English
Pages (from-to)155-169
Number of pages15
JournalRevista Mexicana de Astronomia y Astrofisica
StatePublished - 1 Apr 2016

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