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Brown dwarf populations in open clusters

Adams, T.; Davies, Melvyn B LU ; Jameson, R.F. and Scally, A. (2002) In Monthly Notices of the Royal Astronomical Society 333. p.547-560
Abstract
We present the results of multiple simulations of open clusters, modelling the dynamics of a population of brown dwarf members. We consider the effects of a large range of primordial binary populations, including the possibilities of having brown dwarf members contained within a binary system. We also examine the effects of various cluster diameters and masses. Our examination of a population of wide binary systems containing brown dwarfs, reveals evidence for exchange reactions whereby the brown dwarf is ejected from the system and replaced by a heavier main-sequence star. We find that there exists the possibility of hiding a large fraction of the brown dwarfs contained within the primordial binary population. We conclude that it is... (More)
We present the results of multiple simulations of open clusters, modelling the dynamics of a population of brown dwarf members. We consider the effects of a large range of primordial binary populations, including the possibilities of having brown dwarf members contained within a binary system. We also examine the effects of various cluster diameters and masses. Our examination of a population of wide binary systems containing brown dwarfs, reveals evidence for exchange reactions whereby the brown dwarf is ejected from the system and replaced by a heavier main-sequence star. We find that there exists the possibility of hiding a large fraction of the brown dwarfs contained within the primordial binary population. We conclude that it is probable that the majority of brown dwarfs are contained within primordial binary systems which then hides a large proportion of them from detection. (Less)
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author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
open clusters and associations: individual: Pleiades, stars: low-mass, binaries: general, open clusters and associations: general, brown dwarfs
in
Monthly Notices of the Royal Astronomical Society
volume
333
pages
547 - 560
publisher
Wiley-Blackwell
external identifiers
  • scopus:0000546498
ISSN
1365-2966
language
English
LU publication?
no
id
50d7512e-76b9-4ddb-8699-115886ff9e36 (old id 761398)
alternative location
http://cdsads.u-strasbg.fr/abs/2002MNRAS.333..547A
date added to LUP
2007-12-17 13:53:49
date last changed
2017-01-01 08:03:46
@article{50d7512e-76b9-4ddb-8699-115886ff9e36,
  abstract     = {We present the results of multiple simulations of open clusters, modelling the dynamics of a population of brown dwarf members. We consider the effects of a large range of primordial binary populations, including the possibilities of having brown dwarf members contained within a binary system. We also examine the effects of various cluster diameters and masses. Our examination of a population of wide binary systems containing brown dwarfs, reveals evidence for exchange reactions whereby the brown dwarf is ejected from the system and replaced by a heavier main-sequence star. We find that there exists the possibility of hiding a large fraction of the brown dwarfs contained within the primordial binary population. We conclude that it is probable that the majority of brown dwarfs are contained within primordial binary systems which then hides a large proportion of them from detection.},
  author       = {Adams, T. and Davies, Melvyn B and Jameson, R.F. and Scally, A.},
  issn         = {1365-2966},
  keyword      = {open clusters and associations: individual: Pleiades,stars: low-mass,binaries: general,open clusters and associations: general,brown dwarfs},
  language     = {eng},
  pages        = {547--560},
  publisher    = {Wiley-Blackwell},
  series       = {Monthly Notices of the Royal Astronomical Society},
  title        = {Brown dwarf populations in open clusters},
  volume       = {333},
  year         = {2002},
}