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Title:
The Formation of a Cluster of Stars and Brown Dwarfs in a Turbulent Molecular Cloud
Authors:
Bate, Matthew R.; Bonnell, Ian A.; Bromm, Volker
Affiliation:
AA(School of Physics, University of Exeter, Stocker Road, Exeter EX4 4QL, United Kingdom, and Institute of Astronomy, Madingley Road, Cambridge CB3 0HA, United Kingdom), AB(School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9SS, United Kingdom), AC(Institute of Astronomy, Madingley Road, Cambridge CB3 0HA, United Kingdom)
Publication:
The Origin of Stars and Planets: The VLT View: Proceedings of the ESO Workshop Held in Garching, Germany, 24-27 April 2001, ESO ASTROPHYSICS SYMPOSIA. ISBN 3-540-43541-7. Edited by. J.F. Alves and M.J. McCaughrean. Springer-Verlag, 2002, p. 139
Publication Date:
00/2002
Origin:
ESO; SPRINGER
Abstract Copyright:
(c) 2002: Springer-Verlag
DOI:
10.1007/10856518_18
Bibliographic Code:
2002osp..conf..139B

Abstract

We present preliminary results from the first hydrodynamic calculation to follow the collapse and fragmentation of a large-scale turbulent molecular cloud into a stellar cluster while resolving beyond the opacity limit for fragmentation. The calculation produces a mixture of single and binary stars with comparable numbers of stars and brown dwarfs. Without exception, the brown dwarfs are formed by ejection from unstable multiple systems. The calculation produces a stellar initial mass function in agreement with observations. However, at this stage in the calculation, no high-mass (> 0.03 M_sun) brown dwarfs have been formed because they are ejected too soon after formation to have accreted much mass.
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