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Brown Dwarf and Low-Mass Star Sequences in the Pleiades and Praesepe

Published online by Cambridge University Press:  26 May 2016

D. J. Pinfield ,
P. D. Dobbie  and
R. F. Jameson
D. J. Pinfield
Affiliation:
Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Egerton Wharf, Birkenhead, CH41 1LD
P. D. Dobbie
Affiliation:
Astronomy Group, Dept. of Physics & Astronomy, University of Leicester, University Road, Leicester, LE1 7RH
R. F. Jameson
Affiliation:
Astronomy Group, Dept. of Physics & Astronomy, University of Leicester, University Road, Leicester, LE1 7RH

Abstract

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We present new infrared photometry of Pleiades and Praesepe sources, and define the cluster sequences in colour magnitude and 2-colour diagrams. We identify non-members and unresolved binaries, and discuss the clusters binary fractions.

Type
Part 5. Imaging Searches for Mature Ultracool Dwarfs
Information
Symposium - International Astronomical Union , Volume 211: Brown Dwarfs , 2003 , pp. 213 - 214
Copyright
Copyright © Astronomical Society of the Pacific 2001 

References

Bate, M. R., Bonnell, I. A., Bromm, V., 2002, MNRAS, 332, L65 CrossRefGoogle Scholar
Dobbie, P., Pinfield, D., Jameson, R., Hodgkin, S., 2002, MNRAS, 335, L79 Google Scholar
Pinfield, D., Dobbie, P., Jameson, R., Katsiyannis, A., 2002, MNRAS, in prep Google Scholar