Evolution of star clusters with a mass distribution of binaries |
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Authors: | G Giannone L Lo Cascio and D Molteni |
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Institution: | (1) Istituto di Fisica dell'Università, Via Archirafi 36, 90123 Palermo, Italia |
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Abstract: | Summary The dynamical evolution of star clusters with a initial population of binaries strongly depends on the parameters of the bounded
pairs. We performed computational simulation with directN-body codes, on models withN=300 objects, with initial fraction of 20% of binaries with the same orbital semi-axis and with a Salpeter mass spectrum.
The results are compared with previous analysis on similar equal-mass star models. The calculation points out that binaries
with different mass companions determine an enhanced and sudden expansion of the system with neither core collapse nor central
mass segregation.
Paper presented at the 2° Convegno Nazionale di Fisica Cosmica, held at L'Aquila, 29 May – 2 June 1984. |
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Keywords: | Cosmic rays |
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