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The Lower Mass Function of Young Open Clusters

Published online by Cambridge University Press:  26 May 2016

Jérôme Bouvier ,
Estelle Moraux ,
John R. Stauffer ,
David Barrado y Navascués  and
Jean-Charles Cuillandre
Jérôme Bouvier
Affiliation:
Laboratoire d'Astrophysique, Observatoire de Grenoble, B.P.53, 38041 Grenoble Cedex 9, France
Estelle Moraux
Affiliation:
Laboratoire d'Astrophysique, Observatoire de Grenoble, B.P.53, 38041 Grenoble Cedex 9, France
John R. Stauffer
Affiliation:
SIRTF Science Center, California Institute of Technology, Pasadena, CA 91125, USA
David Barrado y Navascués
Affiliation:
LAEFF-INTA, Apdo. 50727, Madrid, Spain
Jean-Charles Cuillandre
Affiliation:
Canada-France-Hawaii Telescope Corp., Kamuela, HI 96743, USA

Abstract

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We report new estimates for the lower mass function of 5 young open clusters spanning an age range from 80 to 150 Myr. In all studied clusters, the mass function across the stellar/substellar boundary (~ 0.072 M⊙) and up to 0.4 M⊙ is consistent with a power-law with an exponent α ⋍ –0.5 ± 0.1, i.e., dN/dM ∝ M-0.5.

Type
Part 4. Observations of Young Brown Dwarfs (age ≃ 50–200 Myr)
Information
Symposium - International Astronomical Union , Volume 211: Brown Dwarfs , 2003 , pp. 147 - 154
Copyright
Copyright © Astronomical Society of the Pacific 2001 

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